void Terrain_DrawCam( terrainMesh_t *pm ) {
qglColor3f( 1,1,1 );
qglPushAttrib( GL_ALL_ATTRIB_BITS );
if ( g_bPatchWireFrame ) {
if( pm->bSelected ) {
qglLineWidth( 2 );
} else {
qglLineWidth( 1 );
}
qglDisable( GL_CULL_FACE );
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
qglDisable( GL_TEXTURE_2D );
if ( g_PrefsDlg.m_bGLLighting ) {
qglDisable( GL_LIGHTING );
}
DrawTerrain( pm, pm->bSelected, true );
if ( g_PrefsDlg.m_bGLLighting ) {
qglEnable( GL_LIGHTING );
}
qglEnable( GL_CULL_FACE );
qglLineWidth( 1 );
} else {
qglEnable( GL_CULL_FACE );
qglCullFace( GL_FRONT );
// draw the textured polys
DrawTerrain( pm, pm->bSelected, true );
// if selected, draw the red tint on the polys
if( pm->bSelected ) { // && ( g_qeglobals.d_savedinfo.include & INCLUDE_CAMERATINT ) ) {
qglColor4f( 1.0, 0.0, 0.0, 0.3 );
qglEnable( GL_BLEND );
qglPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
qglBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
DrawTerrain( pm, pm->bSelected );
qglColor3f( 1, 1, 1 );
}
// draw the backside poly outlines
qglCullFace( GL_BACK );
qglPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
qglDisable( GL_BLEND );
DrawTerrain( pm, pm->bSelected, true );
}
qglPopAttrib();
}
void idGLDrawableConsole::draw(int x, int y, int w, int h) {
qglPushAttrib( GL_ALL_ATTRIB_BITS );
qglClearColor( 0.1f, 0.1f, 0.1f, 0.0f );
qglScissor( 0, 0, w, h );
qglClear( GL_COLOR_BUFFER_BIT );
renderSystem->BeginFrame( w, h );
console->Draw( true );
renderSystem->EndFrame( NULL, NULL );
qglPopAttrib();
}
void Gui_Render()
{
const text_shader_description *shader = renderer.shaderManager->getTextShader();
screenSize[0] = screen_info.w;
screenSize[1] = screen_info.h;
qglUseProgramObjectARB(shader->program);
qglUniform1iARB(shader->sampler, 0);
qglUniform2fvARB(shader->screenSize, 1, screenSize);
qglUniform1fARB(shader->colorReplace, 0.0f);
qglPushAttrib(GL_ENABLE_BIT | GL_PIXEL_MODE_BIT | GL_COLOR_BUFFER_BIT);
qglPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT | GL_CLIENT_VERTEX_ARRAY_BIT);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglPolygonMode(GL_FRONT, GL_FILL);
qglFrontFace(GL_CCW);
qglEnable(GL_BLEND);
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDisable(GL_ALPHA_TEST);
if(World_GetPlayer() && main_inventory_manager)
{
Gui_DrawInventory(engine_frame_time);
}
Gui_DrawNotifier(engine_frame_time);
qglUseProgramObjectARB(shader->program);
qglDepthMask(GL_FALSE);
qglPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
if(screen_info.crosshair != 0)
{
Gui_DrawCrosshair();
}
Gui_DrawBars();
qglUniform1fARB(shader->colorReplace, 1.0f);
GLText_RenderStrings();
Con_Draw(engine_frame_time);
qglUniform1fARB(shader->colorReplace, 0.0f);
qglDepthMask(GL_TRUE);
qglPopClientAttrib();
qglPopAttrib();
}
/*
=================
RB_PolygonClear
This will cover the entire screen with normal rasterization.
Texturing is disabled, but the existing glColor, glDepthMask,
glColorMask, and the enabled state of depth buffering and
stenciling will matter.
=================
*/
void RB_PolygonClear() {
qglPushMatrix();
qglPushAttrib( GL_ALL_ATTRIB_BITS );
qglLoadIdentity();
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_DEPTH_TEST );
qglDisable( GL_CULL_FACE );
qglDisable( GL_SCISSOR_TEST );
qglBegin( GL_POLYGON );
qglVertex3f( -20, -20, -10 );
qglVertex3f( 20, -20, -10 );
qglVertex3f( 20, 20, -10 );
qglVertex3f( -20, 20, -10 );
qglEnd();
qglPopAttrib();
qglPopMatrix();
}
void Gui_DrawLoadScreen(int value)
{
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
qglPushAttrib(GL_ENABLE_BIT | GL_PIXEL_MODE_BIT | GL_COLOR_BUFFER_BIT);
qglPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
qglPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);
qglEnableClientState(GL_VERTEX_ARRAY);
qglEnableClientState(GL_TEXTURE_COORD_ARRAY);
qglEnableClientState(GL_COLOR_ARRAY);
qglDisableClientState(GL_NORMAL_ARRAY);
qglEnable(GL_BLEND);
qglEnable(GL_TEXTURE_2D);
qglDisable(GL_ALPHA_TEST);
qglDepthMask(GL_FALSE);
qglPolygonMode(GL_FRONT, GL_FILL);
qglFrontFace(GL_CCW);
const GLfloat color_w[4] = {1.0f, 1.0f, 1.0f, 1.0f};
const text_shader_description *shader = renderer.shaderManager->getTextShader();
screenSize[0] = screen_info.w;
screenSize[1] = screen_info.h;
qglUseProgramObjectARB(shader->program);
qglUniform1iARB(shader->sampler, 0);
qglUniform2fvARB(shader->screenSize, 1, screenSize);
Gui_DrawRect(0.0, 0.0, screen_info.w, screen_info.h, color_w, color_w, color_w, color_w, BM_OPAQUE, load_screen_tex);
if(value >= 0)
{
Bar[BAR_LOADING].Show(value);
}
qglDepthMask(GL_TRUE);
qglPopClientAttrib();
qglPopAttrib();
Engine_GLSwapWindow();
}
/*
=============
R_DrawAliasVolumeShadow
based on code from BeefQuake R6
=============
*/
void R_DrawAliasVolumeShadow (maliasmodel_t *paliashdr, vec3_t bbox[8])
{
vec3_t light, temp, vecAdd;
float dist, highest, lowest, projected_distance;
float angle, cosp, sinp, cosy, siny, cosr, sinr, ix, iy, iz;
int i, lnum;
dlight_t *dl;
dl = r_newrefdef.dlights;
VectorSet(vecAdd, 680,0,1024); // set base vector, was 576,0,1024
// compute average light vector from dlights
for (i=0, lnum=0; i<r_newrefdef.num_dlights; i++, dl++)
{
if (VectorCompare(dl->origin, currententity->origin))
continue;
VectorSubtract(dl->origin, currententity->origin, temp);
dist = dl->intensity - VectorLength(temp);
if (dist <= 0)
continue;
lnum++;
// Factor in the intensity of a dlight
VectorScale (temp, dist*0.25, temp);
VectorAdd (vecAdd, temp, vecAdd);
}
VectorNormalize(vecAdd);
VectorScale(vecAdd, 1024, vecAdd);
// get projection distance from lightspot height
highest = lowest = bbox[0][2];
for (i=0; i<8; i++) {
if (bbox[i][2] > highest) highest = bbox[i][2];
if (bbox[i][2] < lowest) lowest = bbox[i][2];
}
projected_distance = (fabs(highest - lightspot[2]) + (highest-lowest)) / vecAdd[2];
VectorCopy(vecAdd, light);
/*cosy = cos(-currententity->angles[YAW] / 180 * M_PI);
siny = sin(-currententity->angles[YAW] / 180 * M_PI);
ix = light[0], iy = light[1];
light[0] = (cosy * (ix - 0) + siny * (0 - iy) + 0);
light[1] = (cosy * (iy - 0) + siny * (ix - 0) + 0);
light[2] += 8;*/
// reverse-rotate light vector based on angles
angle = -currententity->angles[PITCH] / 180 * M_PI;
cosp = cos(angle), sinp = sin(angle);
angle = -currententity->angles[YAW] / 180 * M_PI;
cosy = cos(angle), siny = sin(angle);
angle = currententity->angles[ROLL] / 180 * M_PI; // roll is backwards
cosr = cos(angle), sinr = sin(angle);
// rotate for yaw (z axis)
ix = light[0], iy = light[1];
light[0] = cosy * ix - siny * iy + 0;
light[1] = siny * ix + cosy * iy + 0;
// rotate for pitch (y axis)
ix = light[0], iz = light[2];
light[0] = cosp * ix + 0 + sinp * iz;
light[2] = -sinp * ix + 0 + cosp * iz;
// rotate for roll (x axis)
iy = light[1], iz = light[2];
light[1] = 0 + cosr * iy - sinr * iz;
light[2] = 0 + sinr * iy + cosr * iz;
// set up stenciling
if (!r_shadowvolumes->value)
{
qglPushAttrib(GL_STENCIL_BUFFER_BIT); // save stencil buffer
qglClear(GL_STENCIL_BUFFER_BIT);
qglColorMask(0,0,0,0);
GL_DepthMask(0);
GL_DepthFunc(GL_LESS);
GL_Enable(GL_STENCIL_TEST);
qglStencilFunc(GL_ALWAYS, 0, 255);
// qglStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
// qglStencilMask (255);
}
// build shadow volumes and render each to stencil buffer
for (i=0; i<paliashdr->num_meshes; i++)
{
if (paliashdr->meshes[i].skins[currententity->skinnum].renderparms.nodraw
|| paliashdr->meshes[i].skins[currententity->skinnum].renderparms.alphatest
|| paliashdr->meshes[i].skins[currententity->skinnum].renderparms.noshadow)
continue;
R_BuildShadowVolume (paliashdr, i, light, projected_distance, r_shadowvolumes->value);
GL_LockArrays (shadow_va);
if (!r_shadowvolumes->value)
{
if (gl_config.atiSeparateStencil && gl_config.extStencilWrap) // Barnes ATI stenciling
{
GL_Disable(GL_CULL_FACE);
qglStencilOpSeparateATI (GL_BACK, GL_KEEP, GL_INCR_WRAP_EXT, GL_KEEP);
qglStencilOpSeparateATI (GL_FRONT, GL_KEEP, GL_DECR_WRAP_EXT, GL_KEEP);
R_DrawShadowVolume ();
GL_Enable(GL_CULL_FACE);
}
else if (gl_config.extStencilTwoSide && gl_config.extStencilWrap) // Echon's two-sided stenciling
{
GL_Disable(GL_CULL_FACE);
qglEnable (GL_STENCIL_TEST_TWO_SIDE_EXT);
qglActiveStencilFaceEXT (GL_BACK);
qglStencilOp (GL_KEEP, GL_INCR_WRAP_EXT, GL_KEEP);
qglActiveStencilFaceEXT (GL_FRONT);
qglStencilOp (GL_KEEP, GL_DECR_WRAP_EXT, GL_KEEP);
R_DrawShadowVolume ();
qglDisable (GL_STENCIL_TEST_TWO_SIDE_EXT);
GL_Enable(GL_CULL_FACE);
}
else
{ // increment stencil if backface is behind depthbuffer
GL_CullFace(GL_BACK); // quake is backwards, this culls front faces
qglStencilOp(GL_KEEP, GL_INCR, GL_KEEP);
R_DrawShadowVolume ();
// decrement stencil if frontface is behind depthbuffer
GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
qglStencilOp(GL_KEEP, GL_DECR, GL_KEEP);
R_DrawShadowVolume ();
}
}
else
R_DrawShadowVolume ();
GL_UnlockArrays ();
}
// end stenciling and draw stenciled volume
if (!r_shadowvolumes->value)
{
GL_CullFace(GL_FRONT);
GL_Disable(GL_STENCIL_TEST);
GL_DepthFunc(GL_LEQUAL);
GL_DepthMask(1);
qglColorMask(1,1,1,1);
// draw shadows for this model now
R_ShadowBlend (aliasShadowAlpha * currententity->alpha); // was r_shadowalpha->value
qglPopAttrib(); // restore stencil buffer
}
}
void DrawTerrain( terrainMesh_t *pm, bool bPoints, bool bShade ) {
int i;
int w;
int h;
int x;
int y;
//int n;
//float x1;
//float y1;
float scale_x;
float scale_y;
//vec3_t pSelectedPoints[ MAX_TERRA_POINTS ];
//int nIndex;
terravert_t a0;
terravert_t a1;
terravert_t a2;
terravert_t b0;
terravert_t b1;
terravert_t b2;
terrainVert_t *vert;
qtexture_t *texture;
h = pm->height - 1;
w = pm->width - 1;
scale_x = pm->scale_x;
scale_y = pm->scale_y;
qglShadeModel (GL_SMOOTH);
if ( bShade ) {
for( i = 0; i < pm->numtextures; i++ ) {
texture = pm->textures[ i ];
qglBindTexture( GL_TEXTURE_2D, texture->texture_number );
vert = pm->heightmap;
for( y = 0; y < h; y++ ) {
qglBegin( GL_TRIANGLES );
for( x = 0; x < w; x++, vert++ ) {
Terrain_GetTriangles( pm, x, y, &a0, &a1, &a2, &b0, &b1, &b2, texture );
// first tri
if ( a0.rgba[ 3 ] || a1.rgba[ 3 ] || a2.rgba[ 3 ] ) {
qglColor4fv( a0.rgba );
qglTexCoord2fv( a0.tc );
qglVertex3fv( a0.xyz );
qglColor4fv( a1.rgba );
qglTexCoord2fv( a1.tc );
qglVertex3fv( a1.xyz );
qglColor4fv( a2.rgba );
qglTexCoord2fv( a2.tc );
qglVertex3fv( a2.xyz );
}
// second tri
if ( b0.rgba[ 3 ] || b1.rgba[ 3 ] || b2.rgba[ 3 ] ) {
qglColor4fv( b0.rgba );
qglTexCoord2fv( b0.tc );
qglVertex3fv( b0.xyz );
qglColor4fv( b1.rgba );
qglTexCoord2fv( b1.tc );
qglVertex3fv( b1.xyz );
qglColor4fv( b2.rgba );
qglTexCoord2fv( b2.tc );
qglVertex3fv( b2.xyz );
}
}
qglEnd ();
}
}
} else {
for( i = 0; i < pm->numtextures; i++ ) {
texture = pm->textures[ i ];
qglBindTexture( GL_TEXTURE_2D, texture->texture_number );
vert = pm->heightmap;
for( y = 0; y < h; y++ ) {
qglBegin( GL_TRIANGLES );
for( x = 0; x < w; x++, vert++ ) {
Terrain_GetTriangles( pm, x, y, &a0, &a1, &a2, &b0, &b1, &b2, texture );
// first tri
if ( a0.rgba[ 3 ] || a1.rgba[ 3 ] || a2.rgba[ 3 ] ) {
qglColor4fv( a0.rgba );
qglTexCoord2fv( a0.tc );
qglVertex3fv( a0.xyz );
qglColor4fv( a1.rgba );
qglTexCoord2fv( a1.tc );
qglVertex3fv( a1.xyz );
qglColor4fv( a2.rgba );
qglTexCoord2fv( a2.tc );
qglVertex3fv( a2.xyz );
}
// second tri
if ( b0.rgba[ 3 ] || b1.rgba[ 3 ] || b2.rgba[ 3 ] ) {
qglColor4fv( b0.rgba );
qglTexCoord2fv( b0.tc );
qglVertex3fv( b0.xyz );
qglColor4fv( b1.rgba );
qglTexCoord2fv( b1.tc );
qglVertex3fv( b1.xyz );
qglColor4fv( b2.rgba );
qglTexCoord2fv( b2.tc );
qglVertex3fv( b2.xyz );
}
}
qglEnd ();
}
}
}
qglPushAttrib( GL_CURRENT_BIT );
bool bDisabledLighting = qglIsEnabled( GL_LIGHTING );
if ( bDisabledLighting ) {
qglDisable( GL_LIGHTING );
}
#if 0
terrainVert_t *currentrow;
terrainVert_t *nextrow;
float x2;
float y2;
// Draw normals
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglColor3f( 1, 1, 1 );
qglBegin( GL_LINES );
y2 = pm->origin[ 1 ];
nextrow = pm->heightmap;
for( y = 0; y < h; y++ ) {
y1 = y2;
y2 += scale_y;
x2 = pm->origin[ 0 ];
currentrow = nextrow;
nextrow = currentrow + pm->width;
for( x = 0; x < w; x++ ) {
x1 = x2;
x2 += scale_x;
// normals
qglVertex3f( x1, y1, pm->origin[ 2 ] + currentrow[ x ].height );
qglVertex3f( x1 + currentrow[ x ].normal[ 0 ] * 16.0f, y1 + currentrow[ x ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + currentrow[ x ].height + currentrow[ x ].normal[ 2 ] * 16.0f );
qglVertex3f( x2, y1, pm->origin[ 2 ] + currentrow[ x + 1 ].height );
qglVertex3f( x2 + currentrow[ x + 1 ].normal[ 0 ] * 16.0f, y1 + currentrow[ x + 1 ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + currentrow[ x + 1 ].height + currentrow[ x + 1 ].normal[ 2 ] * 16.0f );
qglVertex3f( x1, y2, pm->origin[ 2 ] + nextrow[ x ].height );
qglVertex3f( x1 + nextrow[ x ].normal[ 0 ] * 16.0f, y2 + nextrow[ x ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + nextrow[ x ].height + nextrow[ x ].normal[ 2 ] * 16.0f );
qglVertex3f( x2, y2, pm->origin[ 2 ] + nextrow[ x + 1 ].height );
qglVertex3f( x2 + nextrow[ x + 1 ].normal[ 0 ] * 16.0f, y2 + nextrow[ x + 1 ].normal[ 1 ] * 16.0f, pm->origin[ 2 ] + nextrow[ x + 1 ].height + nextrow[ x + 1 ].normal[ 2 ] * 16.0f );
}
}
qglEnd ();
qglEnable( GL_TEXTURE_2D );
#endif
#if 0
if ( bPoints && ( g_qeglobals.d_select_mode == sel_terrainpoint || g_qeglobals.d_select_mode == sel_area ) ) {
qglPointSize( 6 );
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglBegin( GL_POINTS );
nIndex = 0;
qglColor4f( 1, 0, 1, 1 );
y1 = pm->origin[ 1 ];
for ( y = 0; y < pm->height; y++, y1 += pm->scale_y ) {
x1 = pm->origin[ 0 ];
for( x = 0; x < pm->width; x++, x1 += pm->scale_x ) {
// FIXME: need to not do loop lookups inside here
n = Terrain_PointInMoveList( &pm->heightmap[ x + y * pm->width ] );
if ( n >= 0 ) {
VectorSet( pSelectedPoints[ nIndex ], x1, y1, pm->heightmap[ x + y * pm->width ].height + pm->origin[ 2 ] );
nIndex++;
} else {
qglVertex3f( x1, y1, pm->origin[ 2 ] + pm->heightmap[ x + y * pm->width ].height );
}
}
}
qglEnd();
qglEnable( GL_TEXTURE_2D );
if ( nIndex > 0 ) {
qglBegin( GL_POINTS );
qglColor4f( 0, 0, 1, 1 );
while( nIndex-- > 0 ) {
qglVertex3fv( pSelectedPoints[ nIndex ] );
}
qglEnd();
}
}
#endif
if ( g_qeglobals.d_numterrapoints && ( ( g_qeglobals.d_select_mode == sel_terrainpoint ) || ( g_qeglobals.d_select_mode == sel_terraintexture ) ) ) {
#if 0
qglPointSize( 6 );
qglDisable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglBegin( GL_POINTS );
qglColor4f( 1, 0, 1, 1 );
for( i = 0; i < g_qeglobals.d_numterrapoints; i++ ) {
qglVertex3fv( g_qeglobals.d_terrapoints[ i ]->xyz );
}
qglEnd();
qglEnable( GL_TEXTURE_2D );
#endif
brush_t *pb;
terrainMesh_t *pm;
pm = NULL;
for( pb = active_brushes .next; pb != &active_brushes; pb = pb->next ) {
if ( pb->terrainBrush ) {
pm = pb->pTerrain;
break;
}
}
if ( pm ) {
qglDisable( GL_TEXTURE_2D );
qglBegin( GL_TRIANGLES );
qglEnable( GL_BLEND );
qglColor4f( 0.25, 0.5, 1, 0.35 );
for( i = 0; i < g_qeglobals.d_numterrapoints; i++ ) {
terravert_t a0;
terravert_t a1;
terravert_t a2;
qglColor4f( 0.25, 0.5, 1, g_qeglobals.d_terrapoints[ i ]->scale * 0.75 + 0.25 );
Terrain_GetTriangle( pm, g_qeglobals.d_terrapoints[ i ]->tri.index * 2, &a0, &a1, &a2 );
qglVertex3fv( a0.xyz );
qglVertex3fv( a1.xyz );
qglVertex3fv( a2.xyz );
Terrain_GetTriangle( pm, g_qeglobals.d_terrapoints[ i ]->tri.index * 2 + 1, &a0, &a1, &a2 );
qglVertex3fv( a0.xyz );
qglVertex3fv( a1.xyz );
qglVertex3fv( a2.xyz );
}
qglEnd();
qglDisable( GL_BLEND );
qglEnable( GL_TEXTURE_2D );
}
}
}