/*
==================
RB_CreateDrawInteractions
==================
*/
static void RB_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// force a space calculation
backEnd.currentSpace = NULL;
if ( r_useTripleTextureARB.GetBool() && glConfig.maxTextureUnits >= 3 ) {
for ( ; surf ; surf = surf->nextOnLight ) {
// break it up into multiple primitive draw interactions if necessary
RB_CreateSingleDrawInteractions( surf, RB_ARB_DrawThreeTextureInteraction );
}
} else {
for ( ; surf ; surf = surf->nextOnLight ) {
// break it up into multiple primitive draw interactions if necessary
RB_CreateSingleDrawInteractions( surf, RB_ARB_DrawInteraction );
}
}
}
/*
=============
RB_ARB2_CreateDrawInteractions
=============
*/
void RB_ARB2_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// perform setup here that will be constant for all interactions
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc );
// bind the vertex program
if ( r_testARBProgram.GetBool() ) {
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_TEST );
qglBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, FPROG_TEST );
} else {
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_INTERACTION );
qglBindProgramARB( GL_FRAGMENT_PROGRAM_ARB, FPROG_INTERACTION );
}
qglEnable(GL_VERTEX_PROGRAM_ARB);
qglEnable(GL_FRAGMENT_PROGRAM_ARB);
// enable the vertex arrays
qglEnableVertexAttribArrayARB( 8 );
qglEnableVertexAttribArrayARB( 9 );
qglEnableVertexAttribArrayARB( 10 );
qglEnableVertexAttribArrayARB( 11 );
qglEnableClientState( GL_COLOR_ARRAY );
// texture 0 is the normalization cube map for the vector towards the light
GL_SelectTextureNoClient( 0 );
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
globalImages->ambientNormalMap->Bind();
} else {
globalImages->normalCubeMapImage->Bind();
}
// texture 6 is the specular lookup table
GL_SelectTextureNoClient( 6 );
if ( r_testARBProgram.GetBool() ) {
globalImages->specular2DTableImage->Bind(); // variable specularity in alpha channel
} else {
globalImages->specularTableImage->Bind();
}
for ( ; surf ; surf=surf->nextOnLight ) {
// perform setup here that will not change over multiple interaction passes
// set the vertex pointers
idDrawVert *ac = (idDrawVert *)vertexCache.Position( surf->geo->ambientCache );
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color );
qglVertexAttribPointerARB( 11, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->normal.ToFloatPtr() );
qglVertexAttribPointerARB( 10, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[1].ToFloatPtr() );
qglVertexAttribPointerARB( 9, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[0].ToFloatPtr() );
qglVertexAttribPointerARB( 8, 2, GL_FLOAT, false, sizeof( idDrawVert ), ac->st.ToFloatPtr() );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
// this may cause RB_ARB2_DrawInteraction to be exacuted multiple
// times with different colors and images if the surface or light have multiple layers
RB_CreateSingleDrawInteractions( surf, RB_ARB2_DrawInteraction );
}
qglDisableVertexAttribArrayARB( 8 );
qglDisableVertexAttribArrayARB( 9 );
qglDisableVertexAttribArrayARB( 10 );
qglDisableVertexAttribArrayARB( 11 );
qglDisableClientState( GL_COLOR_ARRAY );
// disable features
GL_SelectTextureNoClient( 6 );
globalImages->BindNull();
GL_SelectTextureNoClient( 5 );
globalImages->BindNull();
GL_SelectTextureNoClient( 4 );
globalImages->BindNull();
GL_SelectTextureNoClient( 3 );
globalImages->BindNull();
GL_SelectTextureNoClient( 2 );
globalImages->BindNull();
GL_SelectTextureNoClient( 1 );
globalImages->BindNull();
backEnd.glState.currenttmu = -1;
GL_SelectTexture( 0 );
qglDisable(GL_VERTEX_PROGRAM_ARB);
qglDisable(GL_FRAGMENT_PROGRAM_ARB);
}
/*
=============
RB_GLSL_CreateDrawInteractions
=============
*/
static void RB_GLSL_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// perform setup here that will be constant for all interactions
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc );
// bind the vertex and fragment program
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
qglUseProgramObjectARB( interactionAmbShader.program );
} else {
qglUseProgramObjectARB( interactionDirShader.program );
}
// enable the vertex arrays
qglEnableVertexAttribArrayARB( 8 );
qglEnableVertexAttribArrayARB( 9 );
qglEnableVertexAttribArrayARB( 10 );
qglEnableVertexAttribArrayARB( 11 );
qglEnableClientState( GL_COLOR_ARRAY );
for ( ; surf; surf = surf->nextOnLight ) {
// perform setup here that will not change over multiple interaction passes
// ---> sikk - Custom Interaction Shaders: Local Parameters
const float *regs;
regs = surf->shaderRegisters;
for ( int i = 0; i < surf->material->GetNumInteractionParms(); i++ ) {
float parm[ 4 ];
parm[ 0 ] = regs[ surf->material->GetInteractionParm( i, 0 ) ];
parm[ 1 ] = regs[ surf->material->GetInteractionParm( i, 1 ) ];
parm[ 2 ] = regs[ surf->material->GetInteractionParm( i, 2 ) ];
parm[ 3 ] = regs[ surf->material->GetInteractionParm( i, 3 ) ];
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
qglUniform4fvARB( interactionAmbShader.localParms[ i ], 1, parm );
} else {
qglUniform4fvARB( interactionDirShader.localParms[ i ], 1, parm );
}
}
// <--- sikk - Custom Interaction Shaders: Local Parameters
// ---> sikk - Specular Exponent Scale/Bias
float parm[ 4 ];
parm[ 0 ] = surf->material->GetSpecExp( 0 );
parm[ 1 ] = surf->material->GetSpecExp( 1 );
parm[ 2 ] = 0.0f;
parm[ 3 ] = 0.0f;
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
qglUniform4fvARB( interactionAmbShader.specExp, 1, parm );
} else {
qglUniform4fvARB( interactionDirShader.specExp, 1, parm );
}
// <--- sikk - Custom Interaction Shaders: Local Parameters
// set the vertex pointers
idDrawVert *ac = (idDrawVert *)vertexCache.Position( surf->geo->ambientCache );
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color );
qglVertexAttribPointerARB( 11, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->normal.ToFloatPtr() );
qglVertexAttribPointerARB( 10, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[1].ToFloatPtr() );
qglVertexAttribPointerARB( 9, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[0].ToFloatPtr() );
qglVertexAttribPointerARB( 8, 2, GL_FLOAT, false, sizeof( idDrawVert ), ac->st.ToFloatPtr() );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
// set model matrix
//if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
// qglUniformMatrix4fvARB( interactionAmbShader.modelMatrix, 1, false, surf->space->modelMatrix );
//} else {
// qglUniformMatrix4fvARB( interactionDirShader.modelMatrix, 1, false, surf->space->modelMatrix );
//}
// this may cause RB_GLSL_DrawInteraction to be executed multiple
// times with different colors and images if the surface or light have multiple layers
RB_CreateSingleDrawInteractions( surf, RB_GLSL_DrawInteraction );
}
qglDisableVertexAttribArrayARB( 8 );
qglDisableVertexAttribArrayARB( 9 );
qglDisableVertexAttribArrayARB( 10 );
qglDisableVertexAttribArrayARB( 11 );
qglDisableClientState( GL_COLOR_ARRAY );
// disable features
// ---> sikk - Auxilary textures for interaction shaders
// per-surface auxilary texture 0 - 9
for ( int i = 15; i > 0; i-- ) {
GL_SelectTextureNoClient( i );
globalImages->BindNull();
}
// <--- sikk - Auxilary textures for interaction shaders
backEnd.glState.currenttmu = -1;
GL_SelectTexture( 0 );
qglUseProgramObjectARB( 0 );
}
/*
==================
RB_R200_ARB_CreateDrawInteractions
==================
*/
static void RB_R200_ARB_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// force a space calculation for light vectors
backEnd.currentSpace = NULL;
// set the depth test
if ( surf->material->Coverage() == MC_TRANSLUCENT /* != C_PERFORATED */ ) {
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_LESS );
} else {
// only draw on the alpha tested pixels that made it to the depth buffer
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | GLS_DEPTHFUNC_EQUAL );
}
// start the vertex shader
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_R200_INTERACTION );
qglEnable(GL_VERTEX_PROGRAM_ARB);
// start the fragment shader
qglBindFragmentShaderATI( FPROG_FAST_PATH );
#if defined( MACOS_X )
qglEnable( GL_TEXT_FRAGMENT_SHADER_ATI );
#else
qglEnable( GL_FRAGMENT_SHADER_ATI );
#endif
qglColor4f( 1, 1, 1, 1 );
GL_SelectTexture( 1 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 2 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 3 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
for ( ; surf ; surf=surf->nextOnLight ) {
RB_CreateSingleDrawInteractions( surf, RB_R200_ARB_DrawInteraction );
}
GL_SelectTexture( 5 );
globalImages->BindNull();
GL_SelectTexture( 4 );
globalImages->BindNull();
GL_SelectTexture( 3 );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 2 );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 1 );
globalImages->BindNull();
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
GL_SelectTexture( 0 );
qglDisable( GL_VERTEX_PROGRAM_ARB );
#if defined( MACOS_X )
qglDisable( GL_TEXT_FRAGMENT_SHADER_ATI );
#else
qglDisable( GL_FRAGMENT_SHADER_ATI );
#endif
}
/*
=============
RB_GLSL_CreateDrawInteractions
=============
*/
static void RB_GLSL_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// perform setup here that will be constant for all interactions
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc );
// bind the vertex and fragment program
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
if (ambientInteractionShader.program == -1)
qglUseProgramObjectARB( 0 );
else
qglUseProgramObjectARB( ambientInteractionShader.program );
} else {
if (interactionShader.program == -1)
qglUseProgramObjectARB( 0 );
else
qglUseProgramObjectARB( interactionShader.program );
}
// enable the vertex arrays
qglEnableVertexAttribArrayARB( 8 );
qglEnableVertexAttribArrayARB( 9 );
qglEnableVertexAttribArrayARB( 10 );
qglEnableVertexAttribArrayARB( 11 );
qglEnableClientState( GL_COLOR_ARRAY );
for ( ; surf ; surf=surf->nextOnLight ) {
// perform setup here that will not change over multiple interaction passes
// set the vertex pointers
idDrawVert *ac = (idDrawVert *)vertexCache.Position( surf->geo->ambientCache );
qglColorPointer( 4, GL_UNSIGNED_BYTE, sizeof( idDrawVert ), ac->color );
qglVertexAttribPointerARB( 11, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->normal.ToFloatPtr() );
qglVertexAttribPointerARB( 10, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[1].ToFloatPtr() );
qglVertexAttribPointerARB( 9, 3, GL_FLOAT, false, sizeof( idDrawVert ), ac->tangents[0].ToFloatPtr() );
qglVertexAttribPointerARB( 8, 2, GL_FLOAT, false, sizeof( idDrawVert ), ac->st.ToFloatPtr() );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
// set model matrix
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
qglUniformMatrix4fvARB( ambientInteractionShader.modelMatrix, 1, false, surf->space->modelMatrix );
} else {
qglUniformMatrix4fvARB( interactionShader.modelMatrix, 1, false, surf->space->modelMatrix );
}
// this may cause RB_GLSL_DrawInteraction to be executed multiple
// times with different colors and images if the surface or light have multiple layers
RB_CreateSingleDrawInteractions( surf, RB_GLSL_DrawInteraction );
}
qglDisableVertexAttribArrayARB( 8 );
qglDisableVertexAttribArrayARB( 9 );
qglDisableVertexAttribArrayARB( 10 );
qglDisableVertexAttribArrayARB( 11 );
qglDisableClientState( GL_COLOR_ARRAY );
// disable features
GL_SelectTextureNoClient( 4 );
globalImages->BindNull();
GL_SelectTextureNoClient( 3 );
globalImages->BindNull();
GL_SelectTextureNoClient( 2 );
globalImages->BindNull();
GL_SelectTextureNoClient( 1 );
globalImages->BindNull();
backEnd.glState.currenttmu = -1;
GL_SelectTexture( 0 );
qglUseProgramObjectARB( 0 );
}
/*
=============
RB_NV20_CreateDrawInteractions
=============
*/
static void RB_NV20_CreateDrawInteractions(const drawSurf_t *surf)
{
if (!surf) {
return;
}
qglEnable(GL_VERTEX_PROGRAM_ARB);
qglEnable(GL_REGISTER_COMBINERS_NV);
#ifdef MACOS_X
GL_SelectTexture(0);
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
#else
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
qglEnableVertexAttribArrayARB(8);
qglEnableVertexAttribArrayARB(9);
qglEnableVertexAttribArrayARB(10);
qglEnableVertexAttribArrayARB(11);
#endif
for (; surf ; surf=surf->nextOnLight) {
// set the vertex pointers
idDrawVert *ac = (idDrawVert *)vertexCache.Position(surf->geo->ambientCache);
qglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(idDrawVert), ac->color);
#ifdef MACOS_X
GL_SelectTexture(0);
qglTexCoordPointer(2, GL_FLOAT, sizeof(idDrawVert), ac->st.ToFloatPtr());
GL_SelectTexture(1);
qglTexCoordPointer(3, GL_FLOAT, sizeof(idDrawVert), ac->tangents[0].ToFloatPtr());
GL_SelectTexture(2);
qglTexCoordPointer(3, GL_FLOAT, sizeof(idDrawVert), ac->tangents[1].ToFloatPtr());
GL_SelectTexture(3);
qglTexCoordPointer(3, GL_FLOAT, sizeof(idDrawVert), ac->normal.ToFloatPtr());
GL_SelectTexture(0);
#else
qglVertexAttribPointerARB(11, 3, GL_FLOAT, false, sizeof(idDrawVert), ac->normal.ToFloatPtr());
qglVertexAttribPointerARB(10, 3, GL_FLOAT, false, sizeof(idDrawVert), ac->tangents[1].ToFloatPtr());
qglVertexAttribPointerARB(9, 3, GL_FLOAT, false, sizeof(idDrawVert), ac->tangents[0].ToFloatPtr());
qglVertexAttribPointerARB(8, 2, GL_FLOAT, false, sizeof(idDrawVert), ac->st.ToFloatPtr());
#endif
qglVertexPointer(3, GL_FLOAT, sizeof(idDrawVert), ac->xyz.ToFloatPtr());
RB_CreateSingleDrawInteractions(surf, RB_NV20_DrawInteraction);
}
#ifndef MACOS_X
qglDisableVertexAttribArrayARB(8);
qglDisableVertexAttribArrayARB(9);
qglDisableVertexAttribArrayARB(10);
qglDisableVertexAttribArrayARB(11);
#endif
// disable features
#ifdef MACOS_X
GL_SelectTexture(3);
globalImages->BindNull();
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
GL_SelectTexture(2);
globalImages->BindNull();
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
GL_SelectTexture(1);
globalImages->BindNull();
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
#else
GL_SelectTextureNoClient(3);
globalImages->BindNull();
GL_SelectTextureNoClient(2);
globalImages->BindNull();
GL_SelectTextureNoClient(1);
globalImages->BindNull();
#endif
backEnd.glState.currenttmu = -1;
GL_SelectTexture(0);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglDisable(GL_VERTEX_PROGRAM_ARB);
qglDisable(GL_REGISTER_COMBINERS_NV);
}
/*
=============
RB_ARB2_CreateDrawInteractions
=============
*/
void RB_GLSL_CreateDrawInteractions( const drawSurf_t *surf ) {
if ( !surf ) {
return;
}
// perform setup here that will be constant for all interactions
GL_State( GLS_SRCBLEND_ONE | GLS_DSTBLEND_ONE | GLS_DEPTHMASK | backEnd.depthFunc );
//GL_Cull(CT_TWO_SIDED);
qglEnableClientState(GL_VERTEX_ARRAY);
//qglDisableClientState(GL_VERTEX_ARRAY);
qglDisableClientState(GL_TEXTURE_COORD_ARRAY);
glUseProgram(program);
float modelMatrix[16];
myGlMultMatrix( surf->space->modelViewMatrix, backEnd.viewDef->projectionMatrix, modelMatrix);
glUniformMatrix4fv(wvp, 1, GL_FALSE, &modelMatrix[0] );
//glUniformMatrix4fv(wvp1, 1, GL_FALSE, &surf->space->modelViewMatrix[0] );
//const float* mat = backEnd.viewDef->projectionMatrix;
//glUniformMatrix4fv(wvp, 1, GL_FALSE, &mat[0] );
// enable the vertex arrays
glEnableVertexAttribArray( 1 );
glEnableVertexAttribArray( 2 );
glEnableVertexAttribArray( 3 );
glEnableVertexAttribArray( 4 );
glEnableVertexAttribArray( 5 );
glEnableVertexAttribArray( 6 );
// texture 0 is the normalization cube map for the vector towards the light
glActiveTexture(GL_TEXTURE0);
backEnd.glState.currenttmu = 0;
if ( backEnd.vLight->lightShader->IsAmbientLight() ) {
globalImages->ambientNormalMap->Bind();
} else {
globalImages->normalCubeMapImage->Bind();
}
// texture 6 is the specular lookup table
glActiveTexture(GL_TEXTURE6);
backEnd.glState.currenttmu = 6;
if ( r_testARBProgram.GetBool() ) {
globalImages->specular2DTableImage->Bind(); // variable specularity in alpha channel
} else {
globalImages->specularTableImage->Bind();
}
for ( ; surf ; surf=surf->nextOnLight ) {
// set the vertex pointers
idDrawVert *ac = (idDrawVert *)vertexCache.Position( surf->geo->ambientCache );
qglVertexPointer( 3, GL_FLOAT, sizeof( idDrawVert ), ac->xyz.ToFloatPtr() );
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(idDrawVert), ac->xyz.ToFloatPtr());
glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(idDrawVert), ac->st.ToFloatPtr());
glVertexAttribPointer(3, 4, GL_UNSIGNED_BYTE, GL_FALSE, sizeof(idDrawVert), ac->color);
glVertexAttribPointer(4, 3, GL_FLOAT, GL_FALSE, sizeof(idDrawVert), ac->normal.ToFloatPtr());
glVertexAttribPointer(5, 3, GL_FLOAT, GL_FALSE, sizeof(idDrawVert), ac->tangents[0].ToFloatPtr());
glVertexAttribPointer(6, 3, GL_FLOAT, GL_FALSE, sizeof(idDrawVert), ac->tangents[1].ToFloatPtr());
idVec4 localLight;
R_GlobalPointToLocal( surf->space->modelMatrix, backEnd.vLight->globalLightOrigin, localLight.ToVec3() );
localLight.w = 0.0f;
glUniform3fv(lightOrgin, 1, localLight.ToFloatPtr());
//glDrawElements(GL_TRIANGLES, surf->geo->numIndexes, GL_UNSIGNED_SHORT, surf->geo->indexes);
// this may cause RB_ARB2_DrawInteraction to be exacuted multiple
// times with different colors and images if the surface or light have multiple layers
RB_CreateSingleDrawInteractions( surf, RB_GLSL_DrawInteraction );
}
glDisableVertexAttribArray( 1 );
glDisableVertexAttribArray( 2 );
glDisableVertexAttribArray( 3 );
glDisableVertexAttribArray( 4 );
glDisableVertexAttribArray( 5 );
glDisableVertexAttribArray( 6 );
// disable features
glActiveTexture( GL_TEXTURE6 );
backEnd.glState.currenttmu = 6;
globalImages->BindNull();
glActiveTexture( GL_TEXTURE5 );
backEnd.glState.currenttmu = 5;
globalImages->BindNull();
glActiveTexture( GL_TEXTURE4 );
backEnd.glState.currenttmu = 4;
globalImages->BindNull();
glActiveTexture( GL_TEXTURE3 );
backEnd.glState.currenttmu = 3;
globalImages->BindNull();
glActiveTexture( GL_TEXTURE2 );
backEnd.glState.currenttmu = 2;
globalImages->BindNull();
glActiveTexture( GL_TEXTURE1 );
backEnd.glState.currenttmu = 1;
globalImages->BindNull();
glUseProgram(0);
backEnd.glState.currenttmu = -1;
GL_SelectTexture(0 );
}
