/*
============================
idAutoRender::RenderBackground
============================
*/
void idAutoRender::RenderBackground()
{
GL_SelectTexture( 0 );
globalImages->currentRenderImage->Bind();
GL_State( GLS_DEPTHFUNC_ALWAYS | GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO );
float mvpMatrix[16] = { 0 };
mvpMatrix[0] = 1;
mvpMatrix[5] = 1;
mvpMatrix[10] = 1;
mvpMatrix[15] = 1;
// Set Parms
float texS[4] = { 1.0f, 0.0f, 0.0f, 0.0f };
float texT[4] = { 0.0f, 1.0f, 0.0f, 0.0f };
renderProgManager.SetRenderParm( RENDERPARM_TEXTUREMATRIX_S, texS );
renderProgManager.SetRenderParm( RENDERPARM_TEXTUREMATRIX_T, texT );
// disable texgen
float texGenEnabled[4] = { 0, 0, 0, 0 };
renderProgManager.SetRenderParm( RENDERPARM_TEXGEN_0_ENABLED, texGenEnabled );
// set matrix
renderProgManager.SetRenderParms( RENDERPARM_MVPMATRIX_X, mvpMatrix, 4 );
renderProgManager.BindShader_TextureVertexColor();
RB_DrawElementsWithCounters( &backEnd.unitSquareSurface );
}
/*
=====================
RB_T_BlendLight
=====================
*/
static void RB_T_BlendLight( const drawSurf_t *surf ) {
const srfTriangles_t *tri;
tri = surf->geo;
if ( backEnd.currentSpace != surf->space ) {
idPlane lightProject[4];
int i;
for ( i = 0 ; i < 4 ; i++ ) {
R_GlobalPlaneToLocal( surf->space->modelMatrix, backEnd.vLight->lightProject[i], lightProject[i] );
}
GL_SelectTexture( 0 );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[0].ToFloatPtr() );
qglTexGenfv( GL_T, GL_OBJECT_PLANE, lightProject[1].ToFloatPtr() );
qglTexGenfv( GL_Q, GL_OBJECT_PLANE, lightProject[2].ToFloatPtr() );
GL_SelectTexture( 1 );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[3].ToFloatPtr() );
}
// this gets used for both blend lights and shadow draws
if ( tri->ambientCache ) {
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
} else if ( tri->shadowCache ) {
shadowCache_t *sc = (shadowCache_t *)vertexCache.Position( tri->shadowCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( shadowCache_t ), sc->xyz.ToFloatPtr() );
}
RB_DrawElementsWithCounters( tri );
}
/*
==================
RB_NV20_DI_SpecularColorPass
==================
*/
static void RB_NV20_DI_SpecularColorPass(const drawInteraction_t *din)
{
RB_LogComment("---------- RB_NV20_SpecularColorPass ----------\n");
GL_State(GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_ALPHAMASK
| backEnd.depthFunc);
// texture 0 is the normalization cube map for the half angle
#ifdef MACOS_X
GL_SelectTexture(0);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(0);
#endif
globalImages->normalCubeMapImage->Bind();
// texture 1 will be the per-surface bump map
#ifdef MACOS_X
GL_SelectTexture(1);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(1);
#endif
din->bumpImage->Bind();
// texture 2 will be the per-surface specular map
#ifdef MACOS_X
GL_SelectTexture(2);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(2);
#endif
din->specularImage->Bind();
// texture 3 will be the light projected texture
#ifdef MACOS_X
GL_SelectTexture(3);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(3);
#endif
din->lightImage->Bind();
// bind our "fragment program"
RB_NV20_SpecularColorFragment();
// override one parameter for inverted vertex color
if (din->vertexColor == SVC_INVERSE_MODULATE) {
qglCombinerInputNV(GL_COMBINER3_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_INVERT_NV, GL_RGB);
}
// draw it
qglBindProgramARB(GL_VERTEX_PROGRAM_ARB, VPROG_NV20_SPECULAR_COLOR);
RB_DrawElementsWithCounters(din->surf->geo);
}
/*
===============
RB_RenderTriangleSurface
Sets texcoord and vertex pointers
===============
*/
void RB_RenderTriangleSurface( const srfTriangles_t *tri ) {
if ( !tri->ambientCache ) {
RB_DrawElementsImmediate( tri );
return;
}
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), ac->st.ToFloatPtr() );
RB_DrawElementsWithCounters( tri );
}
/*
==================
RB_NV20_DI_DiffuseAndSpecularColorPass
==================
*/
static void RB_NV20_DI_DiffuseAndSpecularColorPass(const drawInteraction_t *din)
{
RB_LogComment("---------- RB_NV20_DI_DiffuseAndSpecularColorPass ----------\n");
GL_State(GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc);
// texture 0 is the normalization cube map for the half angle
// still bound from RB_NV_BumpAndLightPass
// GL_SelectTextureNoClient( 0 );
// GL_Bind( tr.normalCubeMapImage );
// texture 1 is the per-surface bump map
// still bound from RB_NV_BumpAndLightPass
// GL_SelectTextureNoClient( 1 );
// GL_Bind( din->bumpImage );
// texture 2 is the per-surface diffuse map
#ifdef MACOS_X
GL_SelectTexture(2);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(2);
#endif
din->diffuseImage->Bind();
// texture 3 is the per-surface specular map
#ifdef MACOS_X
GL_SelectTexture(3);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(3);
#endif
din->specularImage->Bind();
// bind our "fragment program"
RB_NV20_DiffuseAndSpecularColorFragment();
// draw it
qglBindProgramARB(GL_VERTEX_PROGRAM_ARB, VPROG_NV20_DIFFUSE_AND_SPECULAR_COLOR);
RB_DrawElementsWithCounters(din->surf->geo);
}
/*
=================
RB_ShowLightCount
This is a debugging tool that will draw each surface with a color
based on how many lights are effecting it
=================
*/
static void RB_ShowLightCount() {
int i;
const drawSurf_t *surf;
const viewLight_t *vLight;
if ( !r_showLightCount.GetBool() ) {
return;
}
RB_SimpleWorldSetup();
GL_Clear( false, false, true, 0, 0.0f, 0.0f, 0.0f, 0.0f );
// optionally count everything through walls
if ( r_showLightCount.GetInteger() >= 2 ) {
GL_State( GLS_DEPTHFUNC_EQUAL | GLS_STENCIL_OP_FAIL_KEEP | GLS_STENCIL_OP_ZFAIL_INCR | GLS_STENCIL_OP_PASS_INCR );
} else {
GL_State( GLS_DEPTHFUNC_EQUAL | GLS_STENCIL_OP_FAIL_KEEP | GLS_STENCIL_OP_ZFAIL_KEEP | GLS_STENCIL_OP_PASS_INCR );
}
globalImages->defaultImage->Bind();
for ( vLight = backEnd.viewDef->viewLights; vLight; vLight = vLight->next ) {
for ( i = 0; i < 2; i++ ) {
for ( surf = i ? vLight->localInteractions: vLight->globalInteractions; surf; surf = (drawSurf_t *)surf->nextOnLight ) {
RB_SimpleSurfaceSetup( surf );
RB_DrawElementsWithCounters( surf );
}
}
}
// display the results
R_ColorByStencilBuffer();
if ( r_showLightCount.GetInteger() > 2 ) {
RB_CountStencilBuffer();
}
}
/*
==================
RB_ARB2_DrawInteraction
==================
*/
void RB_ARB2_DrawInteraction( const drawInteraction_t *din ) {
// load all the vertex program parameters
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_ORIGIN, din->localLightOrigin.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_VIEW_ORIGIN, din->localViewOrigin.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_S, din->lightProjection[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_T, din->lightProjection[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_Q, din->lightProjection[2].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_FALLOFF_S, din->lightProjection[3].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_S, din->bumpMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_T, din->bumpMatrix[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_S, din->diffuseMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_T, din->diffuseMatrix[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_S, din->specularMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_T, din->specularMatrix[1].ToFloatPtr() );
// testing fragment based normal mapping
if ( r_testARBProgram.GetBool() ) {
qglProgramEnvParameter4fvARB( GL_FRAGMENT_PROGRAM_ARB, 2, din->localLightOrigin.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_FRAGMENT_PROGRAM_ARB, 3, din->localViewOrigin.ToFloatPtr() );
}
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
static const float negOne[4] = { -1, -1, -1, -1 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, zero );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
break;
case SVC_MODULATE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, one );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, zero );
break;
case SVC_INVERSE_MODULATE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, negOne );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
break;
}
// set the constant colors
qglProgramEnvParameter4fvARB( GL_FRAGMENT_PROGRAM_ARB, 0, din->diffuseColor.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_FRAGMENT_PROGRAM_ARB, 1, din->specularColor.ToFloatPtr() );
// set the textures
// texture 1 will be the per-surface bump map
GL_SelectTextureNoClient( 1 );
din->bumpImage->Bind();
// texture 2 will be the light falloff texture
GL_SelectTextureNoClient( 2 );
din->lightFalloffImage->Bind();
// texture 3 will be the light projection texture
GL_SelectTextureNoClient( 3 );
din->lightImage->Bind();
// texture 4 is the per-surface diffuse map
GL_SelectTextureNoClient( 4 );
din->diffuseImage->Bind();
// texture 5 is the per-surface specular map
GL_SelectTextureNoClient( 5 );
din->specularImage->Bind();
// draw it
RB_DrawElementsWithCounters( din->surf->geo );
}
/*
==================
RB_GLSL_DrawInteraction
==================
*/
static void RB_GLSL_DrawInteraction( const drawInteraction_t *din ) {
// load all the shader parameters
if ( din->ambientLight ) {
// ---> sikk - Included non-power-of-two/frag position conversion
// screen power of two correction factor, assuming the copy to _currentRender
// also copied an extra row and column for the bilerp
float parm[ 4 ];
int w = backEnd.viewDef->viewport.x2 - backEnd.viewDef->viewport.x1 + 1;
int h = backEnd.viewDef->viewport.y2 - backEnd.viewDef->viewport.y1 + 1;
parm[0] = (float)w / globalImages->currentRenderImage->uploadWidth;
parm[1] = (float)h / globalImages->currentRenderImage->uploadHeight;
parm[2] = parm[0] / w; // sikk - added - one less fragment shader instruction
parm[3] = parm[1] / h; // sikk - added - one less fragment shader instruction
qglUniform4fvARB( interactionAmbShader.nonPoT, 1, parm );
// window coord to 0.0 to 1.0 conversion
parm[0] = 1.0 / w;
parm[1] = 1.0 / h;
parm[2] = w; // sikk - added - can be useful to have resolution size in shader
parm[3] = h; // sikk - added - can be useful to have resolution size in shader
qglUniform4fvARB( interactionAmbShader.invRes, 1, parm );
// <--- sikk - Included non-power-of-two/frag position conversion
qglUniform4fvARB( interactionAmbShader.localLightOrigin, 1, din->localLightOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.localViewOrigin, 1, din->localViewOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.lightProjectionS, 1, din->lightProjection[0].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.lightProjectionT, 1, din->lightProjection[1].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.lightProjectionQ, 1, din->lightProjection[2].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.lightFalloff, 1, din->lightProjection[3].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.bumpMatrixS, 1, din->bumpMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.bumpMatrixT, 1, din->bumpMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.diffuseMatrixS, 1, din->diffuseMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.diffuseMatrixT, 1, din->diffuseMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.specularMatrixS, 1, din->specularMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.specularMatrixT, 1, din->specularMatrix[1].ToFloatPtr() );
// ---> sikk - Include model matrix for to-world-space transformations
const struct viewEntity_s *space = backEnd.currentSpace;
qglUniformMatrix4fvARB( interactionAmbShader.modelMatrix, 1, 0, space->modelMatrix );
// <--- sikk - Include model matrix for to-world-space transformations
static const float ignore[ 4 ] = { 0.0, 1.0, 1.0, 1.0 };
static const float modulate[ 4 ] = { 1.0, 0.0, 1.0, 1.0 };
static const float inv_modulate[ 4 ] = { -1.0, 1.0, 1.0, 1.0 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglUniform4fvARB( interactionAmbShader.colorMAD, 1, ignore );
break;
case SVC_MODULATE:
qglUniform4fvARB( interactionAmbShader.colorMAD, 1, modulate );
break;
case SVC_INVERSE_MODULATE:
qglUniform4fvARB( interactionAmbShader.colorMAD, 1, inv_modulate );
break;
}
// set the constant color
qglUniform4fvARB( interactionAmbShader.diffuseColor, 1, din->diffuseColor.ToFloatPtr() );
qglUniform4fvARB( interactionAmbShader.specularColor, 1, din->specularColor.ToFloatPtr() );
} else {
// ---> sikk - Included non-power-of-two/frag position conversion
// screen power of two correction factor, assuming the copy to _currentRender
// also copied an extra row and column for the bilerp
float parm[ 4 ];
int w = backEnd.viewDef->viewport.x2 - backEnd.viewDef->viewport.x1 + 1;
int h = backEnd.viewDef->viewport.y2 - backEnd.viewDef->viewport.y1 + 1;
parm[0] = (float)w / globalImages->currentRenderImage->uploadWidth;
parm[1] = (float)h / globalImages->currentRenderImage->uploadHeight;
parm[2] = parm[0] / w; // sikk - added - one less fragment shader instruction
parm[3] = parm[1] / h; // sikk - added - one less fragment shader instruction
qglUniform4fvARB( interactionDirShader.nonPoT, 1, parm );
// window coord to 0.0 to 1.0 conversion
parm[0] = 1.0 / w;
parm[1] = 1.0 / h;
parm[2] = w; // sikk - added - can be useful to have resolution size in shader
parm[3] = h; // sikk - added - can be useful to have resolution size in shader
qglUniform4fvARB( interactionDirShader.invRes, 1, parm );
// <--- sikk - Included non-power-of-two/frag position conversion
qglUniform4fvARB( interactionDirShader.localLightOrigin, 1, din->localLightOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.localViewOrigin, 1, din->localViewOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.lightProjectionS, 1, din->lightProjection[0].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.lightProjectionT, 1, din->lightProjection[1].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.lightProjectionQ, 1, din->lightProjection[2].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.lightFalloff, 1, din->lightProjection[3].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.bumpMatrixS, 1, din->bumpMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.bumpMatrixT, 1, din->bumpMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.diffuseMatrixS, 1, din->diffuseMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.diffuseMatrixT, 1, din->diffuseMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.specularMatrixS, 1, din->specularMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.specularMatrixT, 1, din->specularMatrix[1].ToFloatPtr() );
// ---> sikk - Include model matrix for to-world-space transformations
const struct viewEntity_s *space = backEnd.currentSpace;
qglUniformMatrix4fvARB( interactionDirShader.modelMatrix, 1, 0, space->modelMatrix );
// <--- sikk - Include model matrix for to-world-space transformations
if ( !backEnd.vLight->lightDef->parms.pointLight ) { // 2D Light Shader (projected lights)
qglUniform1iARB( interactionDirShader.falloffType, 2 );
//qglUseProgramObjectARB( interactionDirShader.program );
//qglUniform1iARB( interactionDirShader.u_lightProjectionTexture, 0 );
//qglUseProgramObjectARB( 0 );
} else { // 3D Light Shader (point lights)
if ( backEnd.vLight->lightDef->parms.parallel ) { // shader specific for sun light (no attenuation)
qglUniform1iARB( interactionDirShader.falloffType, 1 );
} else { // default quadratic attenuation
qglUniform1iARB( interactionDirShader.falloffType, 0 );
}
}
static const float ignore[ 4 ] = { 0.0, 1.0, 1.0, 1.0 };
static const float modulate[ 4 ] = { 1.0, 0.0, 1.0, 1.0 };
static const float inv_modulate[ 4 ] = { -1.0, 1.0, 1.0, 1.0 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglUniform4fvARB( interactionDirShader.colorMAD, 1, ignore );
break;
case SVC_MODULATE:
qglUniform4fvARB( interactionDirShader.colorMAD, 1, modulate );
break;
case SVC_INVERSE_MODULATE:
qglUniform4fvARB( interactionDirShader.colorMAD, 1, inv_modulate );
break;
}
// set the constant colors
qglUniform4fvARB( interactionDirShader.diffuseColor, 1, din->diffuseColor.ToFloatPtr() );
qglUniform4fvARB( interactionDirShader.specularColor, 1, din->specularColor.ToFloatPtr() );
}
// set the textures
// texture 0 will be the light projection texture
GL_SelectTextureNoClient( 0 );
din->lightImage->Bind();
if ( !din->ambientLight ) {
GL_SelectTextureNoClient( 16 );
din->lightImage->Bind();
}
// texture 1 will be the light falloff texture
GL_SelectTextureNoClient( 1 );
din->lightFalloffImage->Bind();
// texture 1 will be the per-surface bump map
GL_SelectTextureNoClient( 2 );
din->bumpImage->Bind();
// texture 2 is the per-surface diffuse map
GL_SelectTextureNoClient( 3 );
din->diffuseImage->Bind();
// texture 3 is the per-surface specular map
GL_SelectTextureNoClient( 4 );
din->specularImage->Bind();
// texture 4 is the ssao buffer
GL_SelectTextureNoClient( 5 );
globalImages->ssaoImage->Bind();
// ---> sikk - Auxilary textures for interaction shaders
// per-surface auxilary texture 0 - 9
for ( int i = 0; i < din->surf->material->GetNumInteractionImages(); i++ ) {
GL_SelectTextureNoClient( i + 6 );
din->surf->material->GetInteractionImage( i )->Bind();
}
// <--- sikk - Auxilary textures for interaction shaders
// draw it
RB_DrawElementsWithCounters( din->surf->geo );
}
/*
==================
RB_STD_T_RenderShaderPasses
This is also called for the generated 2D rendering
==================
*/
void RB_STD_T_RenderShaderPasses( const drawSurf_t *surf ) {
int stage;
const idMaterial *shader;
const shaderStage_t *pStage;
const float *regs;
float color[4];
const srfTriangles_t *tri;
tri = surf->geo;
shader = surf->material;
if ( !shader->HasAmbient() ) {
return;
}
if ( shader->IsPortalSky() ) {
return;
}
// change the matrix if needed
if ( surf->space != backEnd.currentSpace ) {
qglLoadMatrixf( surf->space->modelViewMatrix );
backEnd.currentSpace = surf->space;
RB_SetProgramEnvironmentSpace();
}
// change the scissor if needed
if ( r_useScissor.GetBool() && !backEnd.currentScissor.Equals( surf->scissorRect ) ) {
backEnd.currentScissor = surf->scissorRect;
qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 );
}
// some deforms may disable themselves by setting numIndexes = 0
if ( !tri->numIndexes ) {
return;
}
if ( !tri->ambientCache ) {
common->Printf( "RB_T_RenderShaderPasses: !tri->ambientCache\n" );
return;
}
// get the expressions for conditionals / color / texcoords
regs = surf->shaderRegisters;
// set face culling appropriately
GL_Cull( shader->GetCullType() );
// set polygon offset if necessary
if ( shader->TestMaterialFlag(MF_POLYGONOFFSET) ) {
qglEnable( GL_POLYGON_OFFSET_FILL );
qglPolygonOffset( r_offsetFactor.GetFloat(), r_offsetUnits.GetFloat() * shader->GetPolygonOffset() );
}
if ( surf->space->weaponDepthHack ) {
RB_EnterWeaponDepthHack();
}
if ( surf->space->modelDepthHack != 0.0f ) {
RB_EnterModelDepthHack( surf->space->modelDepthHack );
}
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), reinterpret_cast<void *>(&ac->st) );
for ( stage = 0; stage < shader->GetNumStages() ; stage++ ) {
pStage = shader->GetStage(stage);
// check the enable condition
if ( regs[ pStage->conditionRegister ] == 0 ) {
continue;
}
// skip the stages involved in lighting
if ( pStage->lighting != SL_AMBIENT ) {
continue;
}
// skip if the stage is ( GL_ZERO, GL_ONE ), which is used for some alpha masks
if ( ( pStage->drawStateBits & (GLS_SRCBLEND_BITS|GLS_DSTBLEND_BITS) ) == ( GLS_SRCBLEND_ZERO | GLS_DSTBLEND_ONE ) ) {
continue;
}
// see if we are a new-style stage
newShaderStage_t *newStage = pStage->newStage;
if ( newStage ) {
//--------------------------
//
// new style stages
//
//--------------------------
// completely skip the stage if we don't have the capability
if ( tr.backEndRenderer != BE_ARB2 ) {
continue;
}
if ( r_skipNewAmbient.GetBool() ) {
continue;
}
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), (void *)&ac->color );
qglVertexAttribPointerARB( 9, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[0].ToFloatPtr() );
qglVertexAttribPointerARB( 10, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[1].ToFloatPtr() );
qglNormalPointer( GL_FLOAT, sizeof( idDrawVert ), ac->normal.ToFloatPtr() );
qglEnableClientState( GL_COLOR_ARRAY );
qglEnableVertexAttribArrayARB( 9 );
qglEnableVertexAttribArrayARB( 10 );
qglEnableClientState( GL_NORMAL_ARRAY );
GL_State( pStage->drawStateBits );
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, newStage->vertexProgram );
qglEnable( GL_VERTEX_PROGRAM_ARB );
// megaTextures bind a lot of images and set a lot of parameters
if ( newStage->megaTexture ) {
newStage->megaTexture->SetMappingForSurface( tri );
idVec3 localViewer;
R_GlobalPointToLocal( surf->space->modelMatrix, backEnd.viewDef->renderView.vieworg, localViewer );
newStage->megaTexture->BindForViewOrigin( localViewer );
}
for ( int i = 0 ; i < newStage->numVertexParms ; i++ ) {
float parm[4];
parm[0] = regs[ newStage->vertexParms[i][0] ];
parm[1] = regs[ newStage->vertexParms[i][1] ];
parm[2] = regs[ newStage->vertexParms[i][2] ];
parm[3] = regs[ newStage->vertexParms[i][3] ];
qglProgramLocalParameter4fvARB( GL_VERTEX_PROGRAM_ARB, i, parm );
}
for ( int i = 0 ; i < newStage->numFragmentProgramImages ; i++ ) {
if ( newStage->fragmentProgramImages[i] ) {
GL_SelectTexture( i );
newStage->fragmentProgramImages[i]->Bind();
}
}
qglBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, newStage->fragmentProgram );
qglEnable( GL_FRAGMENT_PROGRAM_ARB );
// draw it
RB_DrawElementsWithCounters( tri );
for ( int i = 1 ; i < newStage->numFragmentProgramImages ; i++ ) {
if ( newStage->fragmentProgramImages[i] ) {
GL_SelectTexture( i );
globalImages->BindNull();
}
}
if ( newStage->megaTexture ) {
newStage->megaTexture->Unbind();
}
GL_SelectTexture( 0 );
qglDisable( GL_VERTEX_PROGRAM_ARB );
qglDisable( GL_FRAGMENT_PROGRAM_ARB );
// Fixme: Hack to get around an apparent bug in ATI drivers. Should remove as soon as it gets fixed.
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, 0 );
qglDisableClientState( GL_COLOR_ARRAY );
qglDisableVertexAttribArrayARB( 9 );
qglDisableVertexAttribArrayARB( 10 );
qglDisableClientState( GL_NORMAL_ARRAY );
continue;
}
//--------------------------
//
// old style stages
//
//--------------------------
// set the color
color[0] = regs[ pStage->color.registers[0] ];
color[1] = regs[ pStage->color.registers[1] ];
color[2] = regs[ pStage->color.registers[2] ];
color[3] = regs[ pStage->color.registers[3] ];
// skip the entire stage if an add would be black
if ( ( pStage->drawStateBits & (GLS_SRCBLEND_BITS|GLS_DSTBLEND_BITS) ) == ( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE )
&& color[0] <= 0 && color[1] <= 0 && color[2] <= 0 ) {
continue;
}
// skip the entire stage if a blend would be completely transparent
if ( ( pStage->drawStateBits & (GLS_SRCBLEND_BITS|GLS_DSTBLEND_BITS) ) == ( GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA )
&& color[3] <= 0 ) {
continue;
}
// select the vertex color source
if ( pStage->vertexColor == SVC_IGNORE ) {
qglColor4fv( color );
} else {
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), (void *)&ac->color );
qglEnableClientState( GL_COLOR_ARRAY );
if ( pStage->vertexColor == SVC_INVERSE_MODULATE ) {
GL_TexEnv( GL_COMBINE_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PRIMARY_COLOR_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_ONE_MINUS_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1 );
}
// for vertex color and modulated color, we need to enable a second
// texture stage
if ( color[0] != 1 || color[1] != 1 || color[2] != 1 || color[3] != 1 ) {
GL_SelectTexture( 1 );
globalImages->whiteImage->Bind();
GL_TexEnv( GL_COMBINE_ARB );
qglTexEnvfv( GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, color );
qglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PREVIOUS_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_CONSTANT_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1 );
qglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_MODULATE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_PREVIOUS_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, GL_CONSTANT_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, GL_SRC_ALPHA );
qglTexEnvi( GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1 );
GL_SelectTexture( 0 );
}
}
// bind the texture
RB_BindVariableStageImage( &pStage->texture, regs );
// set the state
GL_State( pStage->drawStateBits );
RB_PrepareStageTexturing( pStage, surf, ac );
// draw it
RB_DrawElementsWithCounters( tri );
RB_FinishStageTexturing( pStage, surf, ac );
if ( pStage->vertexColor != SVC_IGNORE ) {
qglDisableClientState( GL_COLOR_ARRAY );
GL_SelectTexture( 1 );
GL_TexEnv( GL_MODULATE );
globalImages->BindNull();
GL_SelectTexture( 0 );
GL_TexEnv( GL_MODULATE );
}
}
// reset polygon offset
if ( shader->TestMaterialFlag(MF_POLYGONOFFSET) ) {
qglDisable( GL_POLYGON_OFFSET_FILL );
}
if ( surf->space->weaponDepthHack || surf->space->modelDepthHack != 0.0f ) {
RB_LeaveDepthHack();
}
}
/*
==================
RB_T_FillDepthBuffer
==================
*/
void RB_T_FillDepthBuffer( const drawSurf_t *surf ) {
int stage;
const idMaterial *shader;
const shaderStage_t *pStage;
const float *regs;
float color[4];
const srfTriangles_t *tri;
tri = surf->geo;
shader = surf->material;
// update the clip plane if needed
if ( backEnd.viewDef->numClipPlanes && surf->space != backEnd.currentSpace ) {
GL_SelectTexture( 1 );
idPlane plane;
R_GlobalPlaneToLocal( surf->space->modelMatrix, backEnd.viewDef->clipPlanes[0], plane );
plane[3] += 0.5; // the notch is in the middle
qglTexGenfv( GL_S, GL_OBJECT_PLANE, plane.ToFloatPtr() );
GL_SelectTexture( 0 );
}
if ( !shader->IsDrawn() ) {
return;
}
// some deforms may disable themselves by setting numIndexes = 0
if ( !tri->numIndexes ) {
return;
}
// translucent surfaces don't put anything in the depth buffer and don't
// test against it, which makes them fail the mirror clip plane operation
if ( shader->Coverage() == MC_TRANSLUCENT ) {
return;
}
if ( !tri->ambientCache ) {
common->Printf( "RB_T_FillDepthBuffer: !tri->ambientCache\n" );
return;
}
// get the expressions for conditionals / color / texcoords
regs = surf->shaderRegisters;
// if all stages of a material have been conditioned off, don't do anything
for ( stage = 0; stage < shader->GetNumStages() ; stage++ ) {
pStage = shader->GetStage(stage);
// check the stage enable condition
if ( regs[ pStage->conditionRegister ] != 0 ) {
break;
}
}
if ( stage == shader->GetNumStages() ) {
return;
}
// set polygon offset if necessary
if ( shader->TestMaterialFlag(MF_POLYGONOFFSET) ) {
qglEnable( GL_POLYGON_OFFSET_FILL );
qglPolygonOffset( r_offsetFactor.GetFloat(), r_offsetUnits.GetFloat() * shader->GetPolygonOffset() );
}
// subviews will just down-modulate the color buffer by overbright
if ( shader->GetSort() == SS_SUBVIEW ) {
GL_State( GLS_SRCBLEND_DST_COLOR | GLS_DSTBLEND_ZERO | GLS_DEPTHFUNC_LESS );
color[0] =
color[1] =
color[2] = ( 1.0 / backEnd.overBright );
color[3] = 1;
} else {
// others just draw black
color[0] = 0;
color[1] = 0;
color[2] = 0;
color[3] = 1;
}
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), reinterpret_cast<void *>(&ac->st) );
bool drawSolid = false;
if ( shader->Coverage() == MC_OPAQUE ) {
drawSolid = true;
}
// we may have multiple alpha tested stages
if ( shader->Coverage() == MC_PERFORATED ) {
// if the only alpha tested stages are condition register omitted,
// draw a normal opaque surface
bool didDraw = false;
qglEnable( GL_ALPHA_TEST );
// perforated surfaces may have multiple alpha tested stages
for ( stage = 0; stage < shader->GetNumStages() ; stage++ ) {
pStage = shader->GetStage(stage);
if ( !pStage->hasAlphaTest ) {
continue;
}
// check the stage enable condition
if ( regs[ pStage->conditionRegister ] == 0 ) {
continue;
}
// if we at least tried to draw an alpha tested stage,
// we won't draw the opaque surface
didDraw = true;
// set the alpha modulate
color[3] = regs[ pStage->color.registers[3] ];
// skip the entire stage if alpha would be black
if ( color[3] <= 0 ) {
continue;
}
qglColor4fv( color );
qglAlphaFunc( GL_GREATER, regs[ pStage->alphaTestRegister ] );
// bind the texture
pStage->texture.image->Bind();
// set texture matrix and texGens
RB_PrepareStageTexturing( pStage, surf, ac );
// draw it
RB_DrawElementsWithCounters( tri );
RB_FinishStageTexturing( pStage, surf, ac );
}
qglDisable( GL_ALPHA_TEST );
if ( !didDraw ) {
drawSolid = true;
}
}
// draw the entire surface solid
if ( drawSolid ) {
qglColor4fv( color );
globalImages->whiteImage->Bind();
// draw it
RB_DrawElementsWithCounters( tri );
}
// reset polygon offset
if ( shader->TestMaterialFlag(MF_POLYGONOFFSET) ) {
qglDisable( GL_POLYGON_OFFSET_FILL );
}
// reset blending
if ( shader->GetSort() == SS_SUBVIEW ) {
GL_State( GLS_DEPTHFUNC_LESS );
}
}
/*
==================
RB_RenderInteraction
backEnd.vLight
backEnd.lightScale
backEnd.depthFunc must be equal for alpha tested surfaces to work right,
it is set to lessThan for blended transparent surfaces
This expects a bumpmap stage before a diffuse stage before a specular stage
The material code is responsible for guaranteeing that, but conditional stages
can still make it invalid.
you can't blend two bumpmaps, but you can change bump maps between
blended diffuse / specular maps to get the same effect
==================
*/
static void RB_RenderInteraction( const drawSurf_t *surf ) {
const idMaterial *surfaceShader = surf->material;
const float *surfaceRegs = surf->shaderRegisters;
const viewLight_t *vLight = backEnd.vLight;
const idMaterial *lightShader = vLight->lightShader;
const float *lightRegs = vLight->shaderRegisters;
static idPlane lightProject[4]; // reused across function calls
const srfTriangles_t *tri = surf->geo;
const shaderStage_t *lastBumpStage = NULL;
RB_LogComment( "---------- RB_RenderInteraction %s on %s ----------\n",
lightShader->GetName(), surfaceShader->GetName() );
// change the matrix and light projection vectors if needed
if ( surf->space != backEnd.currentSpace ) {
backEnd.currentSpace = surf->space;
qglLoadMatrixf( surf->space->modelViewMatrix );
for ( int i = 0 ; i < 4 ; i++ ) {
R_GlobalPlaneToLocal( surf->space->modelMatrix, backEnd.vLight->lightProject[i], lightProject[i] );
}
}
// change the scissor if needed
if ( r_useScissor.GetBool() && !backEnd.currentScissor.Equals( surf->scissorRect ) ) {
backEnd.currentScissor = surf->scissorRect;
qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 );
}
// hack depth range if needed
if ( surf->space->weaponDepthHack ) {
RB_EnterWeaponDepthHack();
}
if ( surf->space->modelDepthHack != 0.0f ) {
RB_EnterModelDepthHack( surf->space->modelDepthHack );
}
// set the vertex arrays, which may not all be enabled on a given pass
idDrawVert *ac = (idDrawVert *)vertexCache.Position(tri->ambientCache);
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
GL_SelectTexture( 0 );
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), ac->st.ToFloatPtr() );
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color );
// go through the individual stages
for ( int i = 0 ; i < surfaceShader->GetNumStages() ; i++ ) {
const shaderStage_t *surfaceStage = surfaceShader->GetStage( i );
// ignore ambient stages while drawing interactions
if ( surfaceStage->lighting == SL_AMBIENT ) {
continue;
}
// ignore stages that fail the condition
if ( !surfaceRegs[ surfaceStage->conditionRegister ] ) {
continue;
}
//-----------------------------------------------------
//
// bump / falloff
//
//-----------------------------------------------------
if ( surfaceStage->lighting == SL_BUMP ) {
// render light falloff * bumpmap lighting
if ( surfaceStage->vertexColor != SVC_IGNORE ) {
common->Printf( "shader %s: vertexColor on a bump stage\n",
surfaceShader->GetName() );
}
// check for RGBA modulations in the stage, which are also illegal?
// save the bump map stage for the specular calculation and diffuse
// error checking
lastBumpStage = surfaceStage;
//
// ambient lights combine non-directional bump and falloff
// and write to the alpha channel
//
if ( lightShader->IsAmbientLight() ) {
GL_State( GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc );
// texture 0 will be the per-surface bump map
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf );
// development aid
if ( r_skipBump.GetBool() ) {
globalImages->flatNormalMap->Bind();
}
// texture 1 will be the light falloff
GL_SelectTexture( 1 );
qglEnable( GL_TEXTURE_GEN_S );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[3].ToFloatPtr() );
qglTexCoord2f( 0, 0.5 );
vLight->falloffImage->Bind();
qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 2 );
// set the constant color to a bit of an angle
qglCombinerParameterfvNV( GL_CONSTANT_COLOR0_NV, tr.ambientLightVector.ToFloatPtr() );
// stage 0 sets primary_color = bump dot constant color
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,
GL_CONSTANT_COLOR0_NV, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB,
GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE );
// stage 1 alpha sets primary_color = primary_color * falloff
qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_A_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE );
qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_B_NV,
GL_TEXTURE1_ARB, GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );
qglCombinerOutputNV( GL_COMBINER1_NV, GL_ALPHA,
GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE );
// final combiner takes the result for the alpha channel
qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_PRIMARY_COLOR_NV,
GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );
// draw it
RB_DrawElementsWithCounters( tri );
globalImages->BindNull();
qglDisable( GL_TEXTURE_GEN_S );
GL_SelectTexture( 0 );
RB_FinishStageTexture( &surfaceStage->texture, surf );
continue;
}
//
// draw light falloff to the alpha channel
//
GL_State( GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
qglDisableClientState( GL_COLOR_ARRAY );
qglEnable( GL_TEXTURE_GEN_S );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[3].ToFloatPtr() );
qglTexCoord2f( 0, 0.5 );
vLight->falloffImage->Bind();
// make sure a combiner output doesn't step on the texture
qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 );
qglCombinerOutputNV( GL_COMBINER0_NV, GL_ALPHA,
GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE );
// final combiner
qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_TEXTURE0_ARB,
GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );
// draw it
RB_DrawElementsWithCounters( tri );
qglDisable( GL_TEXTURE_GEN_S );
//
// draw the bump map result onto the alpha channel
//
GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ZERO | GLS_COLORMASK | GLS_DEPTHMASK
| backEnd.depthFunc );
// texture 0 will be the per-surface bump map
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf );
// texture 1 is the normalization cube map
// the texccords are the non-normalized vector towards the light origin
GL_SelectTexture( 1 );
globalImages->normalCubeMapImage->Bind();
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 3, GL_FLOAT, sizeof( lightingCache_t ), ((lightingCache_t *)vertexCache.Position(tri->lightingCache))->localLightVector.ToFloatPtr() );
qglDisableClientState( GL_COLOR_ARRAY );
// program the nvidia register combiners
// I just want alpha = Dot( texture0, texture1 )
qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 );
// stage 0 rgb performs the dot product
// SPARE0 = TEXTURE0 dot TEXTURE1
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,
GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB,
GL_SPARE0_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_TRUE, GL_FALSE, GL_FALSE );
// final combiner just takes the dot result and puts it in alpha
qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_SPARE0_NV,
GL_UNSIGNED_IDENTITY_NV, GL_BLUE );
// draw it
RB_DrawElementsWithCounters( tri );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 0 );
RB_FinishStageTexture( &surfaceStage->texture, surf );
continue;
}
if ( surfaceStage->lighting == SL_DIFFUSE ) {
if ( !lastBumpStage ) {
common->Printf( "shader %s: diffuse stage without a preceeding bumpmap stage\n",
surfaceShader->GetName() );
continue;
}
}
//-----------------------------------------------------
//
// specular exponent modification of the bump / falloff
//
//-----------------------------------------------------
if ( surfaceStage->lighting == SL_SPECULAR ) {
// put specular bump map into alpha channel, then treat as a diffuse
// allow the specular to be skipped as a user speed optimization
if ( r_skipSpecular.GetBool() ) {
continue;
}
// ambient lights don't have specular
if ( lightShader->IsAmbientLight() ) {
continue;
}
if ( !lastBumpStage ) {
common->Printf( "shader %s: specular stage without a preceeding bumpmap stage\n",
surfaceShader->GetName() );
continue;
}
GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_SRC_ALPHA | GLS_COLORMASK | GLS_DEPTHMASK
| backEnd.depthFunc );
// texture 0 will be the per-surface bump map
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
RB_BindStageTexture( surfaceRegs, &lastBumpStage->texture, surf );
// development aid
if ( r_skipBump.GetBool() ) {
globalImages->flatNormalMap->Bind();
}
// texture 1 is the normalization cube map
// indexed by the dynamic halfangle texcoords
GL_SelectTexture( 1 );
globalImages->normalCubeMapImage->Bind();
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 4, GL_FLOAT, 0, vertexCache.Position( surf->dynamicTexCoords ) );
// program the nvidia register combiners
qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 2 );
// stage 0 rgb performs the dot product
// GL_PRIMARY_COLOR_NV = ( TEXTURE0 dot TEXTURE1 - 0.5 ) * 2
// the scale and bias steepen the specular curve
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,
GL_TEXTURE1_ARB, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_TEXTURE0_ARB, GL_EXPAND_NORMAL_NV, GL_RGB );
qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB,
GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_SCALE_BY_TWO_NV, GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_TRUE, GL_FALSE, GL_FALSE );
// stage 0 alpha does nothing
qglCombinerOutputNV( GL_COMBINER0_NV, GL_ALPHA,
GL_DISCARD_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE );
// stage 1 rgb does nothing
qglCombinerOutputNV( GL_COMBINER1_NV, GL_RGB,
GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE );
// stage 1 alpha takes bump * bump
// PRIMARY_COLOR = ( GL_PRIMARY_COLOR_NV * GL_PRIMARY_COLOR_NV - 0.5 ) * 2
// the scale and bias steepen the specular curve
qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_A_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE );
qglCombinerInputNV( GL_COMBINER1_NV, GL_ALPHA, GL_VARIABLE_B_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_BLUE );
qglCombinerOutputNV( GL_COMBINER1_NV, GL_ALPHA,
GL_PRIMARY_COLOR_NV, GL_DISCARD_NV, GL_DISCARD_NV,
GL_SCALE_BY_TWO_NV, GL_BIAS_BY_NEGATIVE_ONE_HALF_NV, GL_FALSE, GL_FALSE, GL_FALSE );
// final combiner
qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_PRIMARY_COLOR_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_PRIMARY_COLOR_NV,
GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );
// draw it
RB_DrawElementsWithCounters( tri );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 0 );
RB_FinishStageTexture( &lastBumpStage->texture, surf );
// the bump map in the alpha channel is now corrupted, so a normal diffuse
// map can't be drawn unless a new bumpmap is put down
lastBumpStage = NULL;
// fall through to the common handling of diffuse and specular projected lighting
}
//-----------------------------------------------------
//
// projected light / surface color for diffuse and specular maps
//
//-----------------------------------------------------
if ( surfaceStage->lighting == SL_DIFFUSE || surfaceStage->lighting == SL_SPECULAR ) {
// don't trash alpha
GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ONE | GLS_ALPHAMASK | GLS_DEPTHMASK
| backEnd.depthFunc );
// texture 0 will get the surface color texture
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf );
// development aid
if ( ( surfaceStage->lighting == SL_DIFFUSE && r_skipDiffuse.GetBool() )
|| ( surfaceStage->lighting == SL_SPECULAR && r_skipSpecular.GetBool() ) ) {
globalImages->blackImage->Bind();
}
// texture 1 will get the light projected texture
GL_SelectTexture( 1 );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
qglEnable( GL_TEXTURE_GEN_S );
qglEnable( GL_TEXTURE_GEN_T );
qglEnable( GL_TEXTURE_GEN_Q );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, lightProject[0].ToFloatPtr() );
qglTexGenfv( GL_T, GL_OBJECT_PLANE, lightProject[1].ToFloatPtr() );
qglTexGenfv( GL_Q, GL_OBJECT_PLANE, lightProject[2].ToFloatPtr() );
// texture0 * texture1 * primaryColor * constantColor
qglCombinerParameteriNV( GL_NUM_GENERAL_COMBINERS_NV, 1 );
// SPARE0 = TEXTURE0 * PRIMARY_COLOR
// SPARE1 = TEXTURE1 * CONSTANT_COLOR
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_A_NV,
GL_TEXTURE0_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB );
// variable B will be overriden based on the stage vertexColor option
if ( surfaceStage->vertexColor == SVC_MODULATE ) {
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglEnableClientState( GL_COLOR_ARRAY );
} else if ( surfaceStage->vertexColor == SVC_INVERSE_MODULATE ) {
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_PRIMARY_COLOR_NV, GL_UNSIGNED_INVERT_NV, GL_RGB );
qglEnableClientState( GL_COLOR_ARRAY );
} else { // SVC_IGNORE
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_B_NV,
GL_ZERO, GL_UNSIGNED_INVERT_NV, GL_RGB );
qglDisableClientState( GL_COLOR_ARRAY );
}
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_C_NV,
GL_TEXTURE1_ARB, GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglCombinerInputNV( GL_COMBINER0_NV, GL_RGB, GL_VARIABLE_D_NV,
GL_CONSTANT_COLOR1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglCombinerOutputNV( GL_COMBINER0_NV, GL_RGB,
GL_SPARE0_NV, GL_SPARE1_NV, GL_DISCARD_NV,
GL_NONE, GL_NONE, GL_FALSE, GL_FALSE, GL_FALSE );
// final combiner
qglFinalCombinerInputNV( GL_VARIABLE_A_NV, GL_SPARE1_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_B_NV, GL_SPARE0_NV,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_C_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_D_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_RGB );
qglFinalCombinerInputNV( GL_VARIABLE_G_NV, GL_ZERO,
GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );
// for all light stages, multiply the projected color by the surface
// color, and blend with the framebuffer
for ( int j = 0 ; j < lightShader->GetNumStages() ; j++ ) {
const shaderStage_t *lightStage = lightShader->GetStage( j );
float color[4];
// ignore stages that fail the condition
if ( !lightRegs[ lightStage->conditionRegister ] ) {
continue;
}
// set the color to the light color times the surface color
color[0] = backEnd.lightScale
* lightRegs[ lightStage->color.registers[0] ]
* surfaceRegs[ surfaceStage->color.registers[0] ];
color[1] = backEnd.lightScale
* lightRegs[ lightStage->color.registers[1] ]
* surfaceRegs[ surfaceStage->color.registers[1] ];
color[2] = backEnd.lightScale
* lightRegs[ lightStage->color.registers[2] ]
* surfaceRegs[ surfaceStage->color.registers[2] ];
color[3] = 1;
// don't draw if it would be all black
if ( color[0] == 0 && color[1] == 0 && color[2] == 0 ) {
continue;
}
qglCombinerParameterfvNV( GL_CONSTANT_COLOR1_NV, color );
RB_BindStageTexture( lightRegs, &lightStage->texture, surf );
RB_DrawElementsWithCounters( tri );
RB_FinishStageTexture( &lightStage->texture, surf );
}
if ( surfaceStage->vertexColor != SVC_IGNORE ) {
qglDisableClientState( GL_COLOR_ARRAY );
}
qglDisable( GL_TEXTURE_GEN_S );
qglDisable( GL_TEXTURE_GEN_T );
qglDisable( GL_TEXTURE_GEN_Q );
globalImages->BindNull();
GL_SelectTexture( 0 );
RB_FinishStageTexture( &surfaceStage->texture, surf );
continue;
}
}
// unhack depth range if needed
if ( surf->space->weaponDepthHack || surf->space->modelDepthHack != 0.0f ) {
RB_LeaveDepthHack();
}
}
/*
==================
RB_GLSL_DrawInteraction
==================
*/
static void RB_GLSL_DrawInteraction( const drawInteraction_t *din ) {
// load all the shader parameters
if ( din->ambientLight ) {
qglUniform4fvARB( ambientInteractionShader.localLightOrigin, 1, din->localLightOrigin.ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.lightProjectionS, 1, din->lightProjection[0].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.lightProjectionT, 1, din->lightProjection[1].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.lightProjectionQ, 1, din->lightProjection[2].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.lightFalloff, 1, din->lightProjection[3].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.bumpMatrixS, 1, din->bumpMatrix[0].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.bumpMatrixT, 1, din->bumpMatrix[1].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.diffuseMatrixS, 1, din->diffuseMatrix[0].ToFloatPtr() );
qglUniform4fvARB( ambientInteractionShader.diffuseMatrixT, 1, din->diffuseMatrix[1].ToFloatPtr() );
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
static const float negOne[4] = { -1, -1, -1, -1 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglUniform4fARB( ambientInteractionShader.colorModulate, zero[0], zero[1], zero[2], zero[3] );
qglUniform4fARB( ambientInteractionShader.colorAdd, one[0], one[1], one[2], one[3] );
break;
case SVC_MODULATE:
qglUniform4fARB( ambientInteractionShader.colorModulate, one[0], one[1], one[2], one[3] );
qglUniform4fARB( ambientInteractionShader.colorAdd, zero[0], zero[1], zero[2], zero[3] );
break;
case SVC_INVERSE_MODULATE:
qglUniform4fARB( ambientInteractionShader.colorModulate, negOne[0], negOne[1], negOne[2], negOne[3] );
qglUniform4fARB( ambientInteractionShader.colorAdd, one[0], one[1], one[2], one[3] );
break;
}
// set the constant color
qglUniform4fvARB( ambientInteractionShader.diffuseColor, 1, din->diffuseColor.ToFloatPtr() );
} else {
qglUniform4fvARB( interactionShader.localLightOrigin, 1, din->localLightOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionShader.localViewOrigin, 1, din->localViewOrigin.ToFloatPtr() );
qglUniform4fvARB( interactionShader.lightProjectionS, 1, din->lightProjection[0].ToFloatPtr() );
qglUniform4fvARB( interactionShader.lightProjectionT, 1, din->lightProjection[1].ToFloatPtr() );
qglUniform4fvARB( interactionShader.lightProjectionQ, 1, din->lightProjection[2].ToFloatPtr() );
qglUniform4fvARB( interactionShader.lightFalloff, 1, din->lightProjection[3].ToFloatPtr() );
qglUniform4fvARB( interactionShader.bumpMatrixS, 1, din->bumpMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionShader.bumpMatrixT, 1, din->bumpMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionShader.diffuseMatrixS, 1, din->diffuseMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionShader.diffuseMatrixT, 1, din->diffuseMatrix[1].ToFloatPtr() );
qglUniform4fvARB( interactionShader.specularMatrixS, 1, din->specularMatrix[0].ToFloatPtr() );
qglUniform4fvARB( interactionShader.specularMatrixT, 1, din->specularMatrix[1].ToFloatPtr() );
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
static const float negOne[4] = { -1, -1, -1, -1 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglUniform4fARB( interactionShader.colorModulate, zero[0], zero[1], zero[2], zero[3] );
qglUniform4fARB( interactionShader.colorAdd, one[0], one[1], one[2], one[3] );
break;
case SVC_MODULATE:
qglUniform4fARB( interactionShader.colorModulate, one[0], one[1], one[2], one[3] );
qglUniform4fARB( interactionShader.colorAdd, zero[0], zero[1], zero[2], zero[3] );
break;
case SVC_INVERSE_MODULATE:
qglUniform4fARB( interactionShader.colorModulate, negOne[0], negOne[1], negOne[2], negOne[3] );
qglUniform4fARB( interactionShader.colorAdd, one[0], one[1], one[2], one[3] );
break;
}
// set the constant colors
qglUniform4fvARB( interactionShader.diffuseColor, 1, din->diffuseColor.ToFloatPtr() );
qglUniform4fvARB( interactionShader.specularColor, 1, din->specularColor.ToFloatPtr() );
}
// set the textures
// texture 0 will be the per-surface bump map
GL_SelectTextureNoClient( 0 );
din->bumpImage->Bind();
// texture 1 will be the light falloff texture
GL_SelectTextureNoClient( 1 );
din->lightFalloffImage->Bind();
// texture 2 will be the light projection texture
GL_SelectTextureNoClient( 2 );
din->lightImage->Bind();
// texture 3 is the per-surface diffuse map
GL_SelectTextureNoClient( 3 );
din->diffuseImage->Bind();
if ( !din->ambientLight ) {
// texture 4 is the per-surface specular map
GL_SelectTextureNoClient( 4 );
din->specularImage->Bind();
}
// draw it
RB_DrawElementsWithCounters( din->surf->geo );
}
static void RB_GLSL_SubmitDrawInteractions(const viewLight_t& vLight, const InteractionList& interactionList) {
if (interactionList.IsEmpty())
return;
// perform setup here that will be constant for all interactions
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc );
GL_UseProgram( interactionProgram );
fhRenderProgram::SetShading( r_shading.GetInteger() );
fhRenderProgram::SetSpecularExp( r_specularExp.GetFloat() );
fhRenderProgram::SetAmbientLight( vLight.lightDef->lightShader->IsAmbientLight() ? 1 : 0 );
if (vLight.lightDef->ShadowMode() == shadowMode_t::ShadowMap) {
const idVec4 globalLightOrigin = idVec4( vLight.globalLightOrigin, 1 );
fhRenderProgram::SetGlobalLightOrigin( globalLightOrigin );
const float shadowBrightness = vLight.lightDef->ShadowBrightness();
const float shadowSoftness = vLight.lightDef->ShadowSoftness();
fhRenderProgram::SetShadowParams( idVec4( shadowSoftness, shadowBrightness, vLight.nearClip[0], vLight.farClip[0] ) );
if(vLight.lightDef->parms.parallel) {
//parallel light
fhRenderProgram::SetShadowMappingMode( 3 );
fhRenderProgram::SetPointLightProjectionMatrices( vLight.viewProjectionMatrices[0].ToFloatPtr() );
fhRenderProgram::SetShadowCoords( vLight.shadowCoords, 6 );
fhRenderProgram::SetCascadeDistances(
r_smCascadeDistance0.GetFloat(),
r_smCascadeDistance1.GetFloat(),
r_smCascadeDistance2.GetFloat(),
r_smCascadeDistance3.GetFloat(),
r_smCascadeDistance4.GetFloat());
idVec4 shadowmapSizes[6] = {
idVec4(vLight.nearClip[0], vLight.farClip[0], vLight.width[0], vLight.height[0]),
idVec4(vLight.nearClip[1], vLight.farClip[1], vLight.width[1], vLight.height[1]),
idVec4(vLight.nearClip[2], vLight.farClip[2], vLight.width[2], vLight.height[2]),
idVec4(vLight.nearClip[3], vLight.farClip[3], vLight.width[3], vLight.height[3]),
idVec4(vLight.nearClip[4], vLight.farClip[4], vLight.width[4], vLight.height[4]),
idVec4(vLight.nearClip[5], vLight.farClip[5], vLight.width[5], vLight.height[5])
};
fhRenderProgram::SetShadowMapSize(shadowmapSizes, 6);
}
else if (vLight.lightDef->parms.pointLight) {
//point light
fhRenderProgram::SetShadowMappingMode( 1 );
fhRenderProgram::SetPointLightProjectionMatrices( vLight.viewProjectionMatrices[0].ToFloatPtr() );
fhRenderProgram::SetShadowCoords(vLight.shadowCoords, 6);
{
const idMat3 axis = vLight.lightDef->parms.axis;
float viewerMatrix[16];
viewerMatrix[0] = axis[0][0];
viewerMatrix[4] = axis[0][1];
viewerMatrix[8] = axis[0][2];
viewerMatrix[12] = 0;
viewerMatrix[1] = axis[1][0];
viewerMatrix[5] = axis[1][1];
viewerMatrix[9] = axis[1][2];
viewerMatrix[13] = 0;
viewerMatrix[2] = axis[2][0];
viewerMatrix[6] = axis[2][1];
viewerMatrix[10] = axis[2][2];
viewerMatrix[14] = 0;
viewerMatrix[3] = 0;
viewerMatrix[7] = 0;
viewerMatrix[11] = 0;
viewerMatrix[15] = 1;
fhRenderProgram::SetInverseLightRotation( viewerMatrix );
}
}
else {
//projected light
fhRenderProgram::SetShadowMappingMode( 2 );
fhRenderProgram::SetSpotLightProjectionMatrix( vLight.viewProjectionMatrices[0].ToFloatPtr() );
fhRenderProgram::SetShadowCoords(vLight.shadowCoords, 1);
}
}
else {
//no shadows
fhRenderProgram::SetShadowMappingMode( 0 );
}
//make sure depth hacks are disabled
//FIXME(johl): why is (sometimes) a depth hack enabled at this point?
RB_LeaveDepthHack();
fhRenderProgram::SetProjectionMatrix( backEnd.viewDef->projectionMatrix );
fhRenderProgram::SetPomMaxHeight( -1 );
const viewEntity_t* currentSpace = nullptr;
stageVertexColor_t currentVertexColor = (stageVertexColor_t)-1;
bool currentPomEnabled = false;
idScreenRect currentScissor;
bool depthHackActive = false;
bool currentHasBumpMatrix = false;
bool currentHasDiffuseMatrix = false;
bool currentHasSpecularMatrix = false;
idVec4 currentDiffuseColor = idVec4( 1, 1, 1, 1 );
idVec4 currentSpecularColor = idVec4( 1, 1, 1, 1 );
fhRenderProgram::SetDiffuseColor( currentDiffuseColor );
fhRenderProgram::SetSpecularColor( currentSpecularColor );
fhRenderProgram::SetBumpMatrix( idVec4::identityS, idVec4::identityT );
fhRenderProgram::SetSpecularMatrix( idVec4::identityS, idVec4::identityT );
fhRenderProgram::SetDiffuseMatrix( idVec4::identityS, idVec4::identityT );
glDepthRange(0, 1);
if (r_useScissor.GetBool()) {
auto fb = fhFramebuffer::GetCurrentDrawBuffer();
glScissor( 0, 0, fb->GetWidth(), fb->GetHeight() );
currentScissor.x1 = 0;
currentScissor.y1 = 0;
currentScissor.x2 = fb->GetWidth();
currentScissor.y2 = fb->GetHeight();
}
const int num = interactionList.Num();
for (int i = 0; i < num; ++i) {
const auto& din = interactionList[i];
const auto offset = vertexCache.Bind( din.surf->geo->ambientCache );
GL_SetupVertexAttributes( fhVertexLayout::Draw, offset );
if (currentSpace != din.surf->space) {
fhRenderProgram::SetModelMatrix( din.surf->space->modelMatrix );
fhRenderProgram::SetModelViewMatrix( din.surf->space->modelViewMatrix );
if (din.surf->space->modelDepthHack) {
RB_EnterModelDepthHack( din.surf->space->modelDepthHack );
fhRenderProgram::SetProjectionMatrix( GL_ProjectionMatrix.Top() );
depthHackActive = true;
}
else if (din.surf->space->weaponDepthHack) {
RB_EnterWeaponDepthHack();
fhRenderProgram::SetProjectionMatrix( GL_ProjectionMatrix.Top() );
depthHackActive = true;
}
else if (depthHackActive) {
RB_LeaveDepthHack();
fhRenderProgram::SetProjectionMatrix( GL_ProjectionMatrix.Top() );
depthHackActive = false;
}
// change the scissor if needed
if (r_useScissor.GetBool() && !currentScissor.Equals( din.surf->scissorRect )) {
currentScissor = din.surf->scissorRect;
glScissor( backEnd.viewDef->viewport.x1 + currentScissor.x1,
backEnd.viewDef->viewport.y1 + currentScissor.y1,
currentScissor.x2 + 1 - currentScissor.x1,
currentScissor.y2 + 1 - currentScissor.y1 );
}
currentSpace = din.surf->space;
}
fhRenderProgram::SetLocalLightOrigin( din.localLightOrigin );
fhRenderProgram::SetLocalViewOrigin( din.localViewOrigin );
fhRenderProgram::SetLightProjectionMatrix( din.lightProjection[0], din.lightProjection[1], din.lightProjection[2] );
fhRenderProgram::SetLightFallOff( din.lightProjection[3] );
if (din.hasBumpMatrix) {
fhRenderProgram::SetBumpMatrix( din.bumpMatrix[0], din.bumpMatrix[1] );
currentHasBumpMatrix = true;
}
else if (currentHasBumpMatrix) {
fhRenderProgram::SetBumpMatrix( idVec4::identityS, idVec4::identityT );
currentHasBumpMatrix = false;
}
if (din.hasDiffuseMatrix) {
fhRenderProgram::SetDiffuseMatrix( din.diffuseMatrix[0], din.diffuseMatrix[1] );
currentHasDiffuseMatrix = true;
}
else if (currentHasDiffuseMatrix) {
fhRenderProgram::SetDiffuseMatrix( idVec4::identityS, idVec4::identityT );
currentHasDiffuseMatrix = false;
}
if (din.hasSpecularMatrix) {
fhRenderProgram::SetSpecularMatrix( din.specularMatrix[0], din.specularMatrix[1] );
currentHasSpecularMatrix = true;
}
else if (currentHasSpecularMatrix) {
fhRenderProgram::SetSpecularMatrix( idVec4::identityS, idVec4::identityT );
currentHasSpecularMatrix = false;
}
if (currentVertexColor != din.vertexColor) {
switch (din.vertexColor) {
case SVC_IGNORE:
fhRenderProgram::SetColorModulate( idVec4::zero );
fhRenderProgram::SetColorAdd( idVec4::one );
break;
case SVC_MODULATE:
fhRenderProgram::SetColorModulate( idVec4::one );
fhRenderProgram::SetColorAdd( idVec4::zero );
break;
case SVC_INVERSE_MODULATE:
fhRenderProgram::SetColorModulate( idVec4::negOne );
fhRenderProgram::SetColorAdd( idVec4::one );
break;
}
currentVertexColor = din.vertexColor;
}
if (din.diffuseColor != currentDiffuseColor) {
fhRenderProgram::SetDiffuseColor( din.diffuseColor );
currentDiffuseColor = din.diffuseColor;
}
if (din.specularColor != currentSpecularColor) {
fhRenderProgram::SetSpecularColor( din.specularColor );
currentSpecularColor = din.specularColor;
}
const bool pomEnabled = r_pomEnabled.GetBool() && din.specularImage->hasAlpha;
if (pomEnabled != currentPomEnabled) {
if (pomEnabled) {
fhRenderProgram::SetPomMaxHeight( r_pomMaxHeight.GetFloat() );
}
else {
fhRenderProgram::SetPomMaxHeight( -1 );
}
}
fhRenderProgram::SetNormalMapEncoding( RB_GetNormalEncoding( din.bumpImage ) );
din.bumpImage->Bind( 1 );
din.lightFalloffImage->Bind( 2 );
din.lightImage->Bind( 3 );
din.diffuseImage->Bind( 4 );
din.specularImage->Bind( 5 );
// draw it
backEnd.stats.groups[backEndGroup::Interaction].drawcalls += 1;
backEnd.stats.groups[backEndGroup::Interaction].tris += din.surf->geo->numIndexes / 3;
RB_DrawElementsWithCounters( din.surf->geo );
}
if (depthHackActive) {
RB_LeaveDepthHack();
fhRenderProgram::SetProjectionMatrix( GL_ProjectionMatrix.Top() );
}
if (r_useScissor.GetBool()) {
auto fb = fhFramebuffer::GetCurrentDrawBuffer();
glScissor( 0, 0, fb->GetWidth(), fb->GetHeight() );
backEnd.currentScissor.x1 = 0;
backEnd.currentScissor.y1 = 0;
backEnd.currentScissor.x2 = fb->GetWidth();
backEnd.currentScissor.y2 = fb->GetHeight();
}
}
/*
==================
RB_NV20_DI_BumpAndLightPass
We are going to write alpha as light falloff * ( bump dot light ) * lightProjection
If the light isn't a monoLightShader, the lightProjection will be skipped, because
it will have to be done on an itterated basis
==================
*/
static void RB_NV20_DI_BumpAndLightPass(const drawInteraction_t *din, bool monoLightShader)
{
RB_LogComment("---------- RB_NV_BumpAndLightPass ----------\n");
GL_State(GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc);
// texture 0 is the normalization cube map
// GL_TEXTURE0_ARB will be the normalized vector
// towards the light source
#ifdef MACOS_X
GL_SelectTexture(0);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(0);
#endif
if (din->ambientLight) {
globalImages->ambientNormalMap->Bind();
} else {
globalImages->normalCubeMapImage->Bind();
}
// texture 1 will be the per-surface bump map
#ifdef MACOS_X
GL_SelectTexture(1);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(1);
#endif
din->bumpImage->Bind();
// texture 2 will be the light falloff texture
#ifdef MACOS_X
GL_SelectTexture(2);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(2);
#endif
din->lightFalloffImage->Bind();
// texture 3 will be the light projection texture
#ifdef MACOS_X
GL_SelectTexture(3);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(3);
#endif
if (monoLightShader) {
din->lightImage->Bind();
} else {
// if the projected texture is multi-colored, we
// will need to do it in subsequent passes
globalImages->whiteImage->Bind();
}
// bind our "fragment program"
RB_NV20_BumpAndLightFragment();
// draw it
qglBindProgramARB(GL_VERTEX_PROGRAM_ARB, VPROG_NV20_BUMP_AND_LIGHT);
RB_DrawElementsWithCounters(din->surf->geo);
}
/*
============================
idAutoRender::RenderLoadingIcon
============================
*/
void idAutoRender::RenderLoadingIcon( float fracX, float fracY, float size, float speed )
{
float s = 0.0f;
float c = 1.0f;
if( autoRenderIcon != AUTORENDER_HELLICON )
{
if( Sys_Milliseconds() >= nextRotateTime )
{
nextRotateTime = Sys_Milliseconds() + 100;
currentRotation -= 90.0f;
}
float angle = DEG2RAD( currentRotation );
idMath::SinCos( angle, s, c );
}
const float pixelAspect = renderSystem->GetPixelAspect();
const float screenWidth = renderSystem->GetWidth();
const float screenHeight = renderSystem->GetHeight();
const float minSize = Min( screenWidth, screenHeight );
if( minSize <= 0.0f )
{
return;
}
float scaleX = size * minSize / screenWidth;
float scaleY = size * minSize / screenHeight;
float scale[16] = { 0 };
scale[0] = c * scaleX / pixelAspect;
scale[1] = -s * scaleY;
scale[4] = s * scaleX / pixelAspect;
scale[5] = c * scaleY;
scale[10] = 1.0f;
scale[15] = 1.0f;
scale[12] = fracX;
scale[13] = fracY;
float ortho[16] = { 0 };
ortho[0] = 2.0f;
ortho[5] = -2.0f;
ortho[10] = -2.0f;
ortho[12] = -1.0f;
ortho[13] = 1.0f;
ortho[14] = -1.0f;
ortho[15] = 1.0f;
float finalOrtho[16];
R_MatrixMultiply( scale, ortho, finalOrtho );
float projMatrixTranspose[16];
R_MatrixTranspose( finalOrtho, projMatrixTranspose );
renderProgManager.SetRenderParms( RENDERPARM_MVPMATRIX_X, projMatrixTranspose, 4 );
float a = 1.0f;
if( autoRenderIcon == AUTORENDER_HELLICON )
{
float alpha = DEG2RAD( Sys_Milliseconds() * speed );
a = idMath::Sin( alpha );
a = 0.35f + ( 0.65f * idMath::Fabs( a ) );
}
GL_SelectTexture( 0 );
if( autoRenderIcon == AUTORENDER_HELLICON )
{
globalImages->hellLoadingIconImage->Bind();
}
else
{
globalImages->loadingIconImage->Bind();
}
GL_State( GLS_DEPTHFUNC_ALWAYS | GLS_SRCBLEND_SRC_ALPHA | GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
// Set Parms
float texS[4] = { 1.0f, 0.0f, 0.0f, 0.0f };
float texT[4] = { 0.0f, 1.0f, 0.0f, 0.0f };
renderProgManager.SetRenderParm( RENDERPARM_TEXTUREMATRIX_S, texS );
renderProgManager.SetRenderParm( RENDERPARM_TEXTUREMATRIX_T, texT );
if( autoRenderIcon == AUTORENDER_HELLICON )
{
GL_Color( 1.0f, 1.0f, 1.0f, a );
}
// disable texgen
float texGenEnabled[4] = { 0, 0, 0, 0 };
renderProgManager.SetRenderParm( RENDERPARM_TEXGEN_0_ENABLED, texGenEnabled );
renderProgManager.BindShader_TextureVertexColor();
RB_DrawElementsWithCounters( &backEnd.unitSquareSurface );
}
/*
===================
RB_R200_ARB_DrawInteraction
===================
*/
static void RB_R200_ARB_DrawInteraction( const drawInteraction_t *din ) {
// check for the case we can't handle in a single pass (we could calculate this at shader parse time to optimize)
if ( din->diffuseImage != globalImages->blackImage && din->specularImage != globalImages->blackImage
&& memcmp( din->specularMatrix, din->diffuseMatrix, sizeof( din->diffuseMatrix ) ) ) {
// common->Printf( "Note: Shader %s drawn as two pass on R200\n", din->surf->shader->getName() );
// draw the specular as a separate pass with a black diffuse map
drawInteraction_t d;
d = *din;
d.diffuseImage = globalImages->blackImage;
memcpy( d.diffuseMatrix, d.specularMatrix, sizeof( d.diffuseMatrix ) );
RB_R200_ARB_DrawInteraction( &d );
// now fall through and draw the diffuse pass with a black specular map
d = *din;
din = &d;
d.specularImage = globalImages->blackImage;
}
// load all the vertex program parameters
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_ORIGIN, din->localLightOrigin.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_VIEW_ORIGIN, din->localViewOrigin.ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_S, din->lightProjection[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_T, din->lightProjection[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_PROJECT_Q, din->lightProjection[2].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_LIGHT_FALLOFF_S, din->lightProjection[3].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_S, din->bumpMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_BUMP_MATRIX_T, din->bumpMatrix[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_S, din->diffuseMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_DIFFUSE_MATRIX_T, din->diffuseMatrix[1].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_S, din->diffuseMatrix[0].ToFloatPtr() );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_SPECULAR_MATRIX_T, din->diffuseMatrix[1].ToFloatPtr() );
const srfTriangles_t *tri = din->surf->geo;
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->xyz );
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
static const float negOne[4] = { -1, -1, -1, -1 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, zero );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
break;
case SVC_MODULATE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, one );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, zero );
break;
case SVC_INVERSE_MODULATE:
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_MODULATE, negOne );
qglProgramEnvParameter4fvARB( GL_VERTEX_PROGRAM_ARB, PP_COLOR_ADD, one );
break;
}
// texture 0 = light projection
// texture 1 = light falloff
// texture 2 = surface diffuse
// texture 3 = surface specular
// texture 4 = surface bump
// texture 5 = normalization cube map
GL_SelectTexture( 5 );
if ( din->ambientLight ) {
globalImages->ambientNormalMap->Bind();
} else {
globalImages->normalCubeMapImage->Bind();
}
GL_SelectTexture( 4 );
din->bumpImage->Bind();
GL_SelectTexture( 3 );
din->specularImage->Bind();
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->normal );
GL_SelectTexture( 2 );
din->diffuseImage->Bind();
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->tangents[1][0] );
GL_SelectTexture( 1 );
din->lightFalloffImage->Bind();
qglTexCoordPointer( 3, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->tangents[0][0] );
GL_SelectTexture( 0 );
din->lightImage->Bind();
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->st[0] );
qglSetFragmentShaderConstantATI( GL_CON_0_ATI, din->diffuseColor.ToFloatPtr() );
qglSetFragmentShaderConstantATI( GL_CON_1_ATI, din->specularColor.ToFloatPtr() );
if ( din->vertexColor != SVC_IGNORE ) {
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof(idDrawVert), (void *)&ac->color );
qglEnableClientState( GL_COLOR_ARRAY );
RB_DrawElementsWithCounters( tri );
qglDisableClientState( GL_COLOR_ARRAY );
qglColor4f( 1, 1, 1, 1 );
} else {
RB_DrawElementsWithCounters( tri );
}
}
/*
==================
RB_ARB_DrawInteraction
backEnd.vLight
backEnd.depthFunc must be equal for alpha tested surfaces to work right,
it is set to lessThan for blended transparent surfaces
==================
*/
static void RB_ARB_DrawInteraction( const drawInteraction_t *din ) {
const drawSurf_t *surf = din->surf;
const srfTriangles_t *tri = din->surf->geo;
// set the vertex arrays, which may not all be enabled on a given pass
idDrawVert *ac = (idDrawVert *)vertexCache.Position( tri->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
GL_SelectTexture( 0 );
qglTexCoordPointer( 2, GL_FLOAT, sizeof( idDrawVert ), (void *)&ac->st );
//-----------------------------------------------------
//
// bump / falloff
//
//-----------------------------------------------------
// render light falloff * bumpmap lighting
//
// draw light falloff to the alpha channel
//
GL_State( GLS_COLORMASK | GLS_DEPTHMASK | backEnd.depthFunc );
qglColor3f( 1, 1, 1 );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
qglEnable( GL_TEXTURE_GEN_S );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, din->lightProjection[3].ToFloatPtr() );
qglTexCoord2f( 0, 0.5 );
// ATI R100 can't do partial texgens
#define NO_MIXED_TEXGEN
#ifdef NO_MIXED_TEXGEN
idVec4 plane;
plane[0] = 0;
plane[1] = 0;
plane[2] = 0;
plane[3] = 0.5;
qglEnable( GL_TEXTURE_GEN_T );
qglTexGenfv( GL_T, GL_OBJECT_PLANE, plane.ToFloatPtr() );
plane[0] = 0;
plane[1] = 0;
plane[2] = 0;
plane[3] = 1;
qglEnable( GL_TEXTURE_GEN_Q );
qglTexGenfv( GL_Q, GL_OBJECT_PLANE, plane.ToFloatPtr() );
#endif
din->lightFalloffImage->Bind();
// draw it
RB_DrawElementsWithCounters( tri );
qglDisable( GL_TEXTURE_GEN_S );
#ifdef NO_MIXED_TEXGEN
qglDisable( GL_TEXTURE_GEN_T );
qglDisable( GL_TEXTURE_GEN_Q );
#endif
#if 0
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ZERO | GLS_DEPTHMASK
| backEnd.depthFunc );
// the texccords are the non-normalized vector towards the light origin
GL_SelectTexture( 0 );
globalImages->normalCubeMapImage->Bind();
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 3, GL_FLOAT, sizeof( lightingCache_t ), ((lightingCache_t *)vertexCache.Position(tri->lightingCache))->localLightVector.ToFloatPtr() );
// draw it
RB_DrawElementsWithCounters( tri );
return;
#endif
// we can't do bump mapping with standard calls, so skip it
if ( glConfig.envDot3Available && glConfig.cubeMapAvailable ) {
//
// draw the bump map result onto the alpha channel
//
GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ZERO | GLS_COLORMASK | GLS_DEPTHMASK
| backEnd.depthFunc );
// texture 0 will be the per-surface bump map
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
// FIXME: matrix work! RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf );
din->bumpImage->Bind();
// texture 1 is the normalization cube map
// the texccords are the non-normalized vector towards the light origin
GL_SelectTexture( 1 );
if ( din->ambientLight ) {
globalImages->ambientNormalMap->Bind(); // fixed value
} else {
globalImages->normalCubeMapImage->Bind();
}
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 3, GL_FLOAT, sizeof( lightingCache_t ), ((lightingCache_t *)vertexCache.Position(tri->lightingCache))->localLightVector.ToFloatPtr() );
// I just want alpha = Dot( texture0, texture1 )
GL_TexEnv( GL_COMBINE_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_DOT3_RGBA_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1 );
qglTexEnvi( GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1 );
// draw it
RB_DrawElementsWithCounters( tri );
GL_TexEnv( GL_MODULATE );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 0 );
// RB_FinishStageTexture( &surfaceStage->texture, surf );
}
//-----------------------------------------------------
//
// projected light / surface color for diffuse maps
//
//-----------------------------------------------------
// don't trash alpha
GL_State( GLS_SRCBLEND_DST_ALPHA | GLS_DSTBLEND_ONE | GLS_ALPHAMASK | GLS_DEPTHMASK
| backEnd.depthFunc );
// texture 0 will get the surface color texture
GL_SelectTexture( 0 );
// select the vertex color source
if ( din->vertexColor == SVC_IGNORE ) {
qglColor4fv( din->diffuseColor.ToFloatPtr() );
} else {
// FIXME: does this not get diffuseColor blended in?
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), (void *)&ac->color );
qglEnableClientState( GL_COLOR_ARRAY );
if ( din->vertexColor == SVC_INVERSE_MODULATE ) {
GL_TexEnv( GL_COMBINE_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE );
qglTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PRIMARY_COLOR_ARB );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_ONE_MINUS_SRC_COLOR );
qglTexEnvi( GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1 );
}
}
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
// FIXME: does this not get the texture matrix?
// RB_BindStageTexture( surfaceRegs, &surfaceStage->texture, surf );
din->diffuseImage->Bind();
// texture 1 will get the light projected texture
GL_SelectTexture( 1 );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
qglEnable( GL_TEXTURE_GEN_S );
qglEnable( GL_TEXTURE_GEN_T );
qglEnable( GL_TEXTURE_GEN_Q );
qglTexGenfv( GL_S, GL_OBJECT_PLANE, din->lightProjection[0].ToFloatPtr() );
qglTexGenfv( GL_T, GL_OBJECT_PLANE, din->lightProjection[1].ToFloatPtr() );
qglTexGenfv( GL_Q, GL_OBJECT_PLANE, din->lightProjection[2].ToFloatPtr() );
din->lightImage->Bind();
// draw it
RB_DrawElementsWithCounters( tri );
qglDisable( GL_TEXTURE_GEN_S );
qglDisable( GL_TEXTURE_GEN_T );
qglDisable( GL_TEXTURE_GEN_Q );
globalImages->BindNull();
GL_SelectTexture( 0 );
if ( din->vertexColor != SVC_IGNORE ) {
qglDisableClientState( GL_COLOR_ARRAY );
GL_TexEnv( GL_MODULATE );
}
// RB_FinishStageTexture( &surfaceStage->texture, surf );
}
/*
==================
RB_ARB2_DrawInteraction
==================
*/
void RB_GLSL_DrawInteraction( const drawInteraction_t *din ) {
// load all the vertex program parameters
glUniform3fv(viewOrgin, 1, din->localViewOrigin.ToFloatPtr());
glUniform4fv(lightProjS, 1, din->lightProjection[0].ToFloatPtr());
glUniform4fv(lightProjT, 1, din->lightProjection[1].ToFloatPtr());
glUniform4fv(lightProjQ, 1, din->lightProjection[2].ToFloatPtr());
glUniform4fv(lightFallOffS, 1, din->lightProjection[3].ToFloatPtr());
glUniform4fv(bumpMatrixS, 1, din->bumpMatrix[0].ToFloatPtr());
glUniform4fv(bumpMatrixT, 1, din->bumpMatrix[1].ToFloatPtr());
glUniform4fv(diffuseMatrixS, 1, din->diffuseMatrix[0].ToFloatPtr());
glUniform4fv(diffuseMatrixT, 1, din->diffuseMatrix[1].ToFloatPtr());
glUniform4fv(specularMatrixS, 1, din->specularMatrix[0].ToFloatPtr());
glUniform4fv(specularMatrixT, 1, din->specularMatrix[1].ToFloatPtr());
static const float zero[4] = { 0, 0, 0, 0 };
static const float one[4] = { 1, 1, 1, 1 };
static const float negOne[4] = { -1, -1, -1, -1 };
switch ( din->vertexColor ) {
case SVC_IGNORE:
glUniform4fv(colorModulate, 1, zero);
glUniform4fv(colorAdd, 1, one);
break;
case SVC_MODULATE:
glUniform4fv(colorModulate, 1, one);
glUniform4fv(colorAdd, 1, zero);
break;
case SVC_INVERSE_MODULATE:
glUniform4fv(colorModulate, 1, negOne);
glUniform4fv(colorAdd, 1, one);
break;
}
glUniform4fv(diffuseColor, 1, din->diffuseColor.ToFloatPtr());
glUniform4fv(specularColor, 1, din->specularColor.ToFloatPtr());
// texture 1 will be the per-surface bump map
glActiveTexture(GL_TEXTURE1);
backEnd.glState.currenttmu = 1;
din->bumpImage->Bind();
// texture 2 will be the light falloff texture
glActiveTexture(GL_TEXTURE2);
backEnd.glState.currenttmu = 2;
din->lightFalloffImage->Bind();
// texture 3 will be the light projection texture
glActiveTexture(GL_TEXTURE3);
backEnd.glState.currenttmu = 3;
din->lightImage->Bind();
// texture 4 is the per-surface diffuse map
glActiveTexture(GL_TEXTURE4);
backEnd.glState.currenttmu = 4;
din->diffuseImage->Bind();
// texture 5 is the per-surface specular map
glActiveTexture(GL_TEXTURE5);
backEnd.glState.currenttmu = 5;
din->specularImage->Bind();
RB_DrawElementsWithCounters( din->surf->geo );
}