void Pass2D::setup(GLRenderer *r) {
Pass::setup(r);
GL_Enable(GL_SCISSOR_TEST);
GL_Disable(GL_LIGHTING);
GL_Disable(GL_DEPTH_TEST);
GL_Disable(GL_CULL_FACE);
GL_Enable(GL_BLEND);
GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glAlphaFunc(GL_GREATER, 0.01f);
Cvar_SetVarValue(&gfx_GLSLPass, 0);
GL_TexModulate(1.0);
GL_UseProgram(0);
GL_MatrixMode(GL_PROJECTION);
GL_PushMatrix();
glLoadIdentity();
glOrtho(0, Vid_GetScreenW(), Vid_GetScreenH(), 0, -1.0, 1.0);
GL_MatrixMode(GL_MODELVIEW);
GL_PushMatrix();
glLoadIdentity();
#ifdef DEBUG
GLSL_catchLastError("Pass2D::setup(): ");
#endif
}
void GLRenderListWaterItem::renderPass(GLRenderer *r, bool renderPass, bool loadMatrix, unsigned int materialPass) {
sceneobj_t obj;
float waterlevel = gfx_waterlevel.value*world_waterlevel.value;
if(!gfx_water.integer)
return;
CLEAR_SCENEOBJ(obj);
SET_VEC3(obj.pos, world.gridwidth*WORLD_BASE_SIZE*0.5f, world.gridheight*WORLD_BASE_SIZE*0.5f, waterlevel);
SET_VEC4(obj.color, gfx_waterr.value, gfx_waterg.value, gfx_waterb.value, gfx_wateralpha.value);
//decide on flags
meshFlags = watermat->generateMeshFlags();
obj.flags |= SCENEOBJ_SOLID_COLOR | SCENEOBJ_SINGLE_SHADER;
GL_MatrixMode(GL_MODELVIEW);
GL_PushMatrix();
GL_LoadObjectMatrix(&obj);
watermat->construct(r->getCurrentPass());
for(int pass=0;pass<watermat->countMaterialPasses();pass++) {
watermat->renderMaterialPass(pass, &obj);
GL_DrawMesh(&obj, &water_model->meshes[0], meshFlags, true);
}
GL_PopMatrix();
}
/*
==============
R_ShadowBlend
Draws projection shadow(s)
from stenciled volume
==============
*/
void R_ShadowBlend (float shadowalpha)
{
const vec4_t color[4] = {
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha},
{0, 0, 0, shadowalpha}
};
static const vec3_t verts[4] = {
{10, 100, 100},
{10, -100, 100},
{10, -100, -100},
{10, 100, -100}
};
static const uint32_t indices[6] = {
0, 1, 2, 0, 2, 3
};
if (r_shadows->value != 3)
return;
GL_PushMatrix(GL_MODELVIEW);
GL_LoadMatrix(GL_MODELVIEW, glState.axisRotation);
GL_Disable (GL_ALPHA_TEST);
GL_Enable (GL_BLEND);
GL_Disable (GL_DEPTH_TEST);
GL_DisableTexture(0);
GL_StencilFunc(GL_NOTEQUAL, 0, 255);
glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
GL_Enable(GL_STENCIL_TEST);
rb_vertex = rb_index = 0;
memcpy(indexArray, indices, sizeof(indices));
memcpy(vertexArray, verts, sizeof(vec3_t) * 4);
memcpy(colorArray, color, sizeof(vec4_t) * 4);
rb_index += 6;
rb_vertex += 4;
RB_RenderMeshGeneric (false);
GL_PopMatrix(GL_MODELVIEW);
GL_BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Disable (GL_BLEND);
GL_EnableTexture(0);
GL_Enable (GL_DEPTH_TEST);
GL_Disable(GL_STENCIL_TEST);
//GL_Enable (GL_ALPHA_TEST);
glColor4f(1,1,1,1);
}
//// HELPER FUNCTIONS ////
void GL_PushCamera(camera_t *camera)
{
if(camera->use_viewport) {
glViewport(camera->x, camera->y, camera->width, camera->height);
glScissor(camera->x, camera->y, camera->width, camera->height);
}
GL_MatrixMode(GL_PROJECTION);
GL_PushMatrix();
glLoadIdentity();
camera->aspect = (float)camera->width / (float)camera->height;
gluPerspective(camera->fovy, camera->aspect, camera->nearclip, /*camera->fog_far ? camera->fog_far+200 :*/ camera->farclip);
#ifdef DEBUG
GLSL_catchLastError("GL_PushCamera :: PROJECTION");
#endif
GL_MatrixMode(GL_MODELVIEW);
GL_PushMatrix();
//set up the inverse of the camera's matrix (axis and position)
Cam_ConstructOpenGLMat44(camera, ¤tTransformMatrix);
glLoadMatrixf(currentTransformMatrix.matrix);
//glLoadIdentity();
//glRotatef(-90, 1, 0, 0); //rotate around the x axis so viewaxis[Z] points UP from our viewpoint
//glMultMatrixf(currentTransformMatrix.matrix);
//glTranslatef(tr[AXIS_RIGHT],tr[AXIS_FORWARD],tr[AXIS_UP]);
#ifdef DEBUG
//float mat[16];
//glGetFloatv(GL_PROJECTION_MATRIX, mat);
GLSL_catchLastError("GL_PushCamera :: MODELVIEW");
#endif
rot_tm[0] = currentTransformMatrix.matrix[0];
rot_tm[1] = currentTransformMatrix.matrix[1];
rot_tm[2] = currentTransformMatrix.matrix[2];
rot_tm[3] = currentTransformMatrix.matrix[4];
rot_tm[4] = currentTransformMatrix.matrix[5];
rot_tm[5] = currentTransformMatrix.matrix[6];
rot_tm[6] = currentTransformMatrix.matrix[8];
rot_tm[7] = currentTransformMatrix.matrix[9];
rot_tm[8] = currentTransformMatrix.matrix[10];
}
void GL_PushCSMCamera(camera_t *light, camera_t *viewer, int split)
{
Cam_ConstructOpenGLMat44(light, &lightView);
updateFrustumPoints(shadowFrusta[split], viewer);
/*float minZ =*/ applyCropMatrix(shadowFrusta[split], lightView, split);
GL_MatrixMode(GL_MODELVIEW);
GL_PushMatrix();
glLoadIdentity();
glMultMatrixf(lightView.matrix);
}
/*
** RB_DrawSun
*/
void RB_DrawSun( void )
{
#if 0
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
matrix_t transformMatrix;
matrix_t modelViewMatrix;
if ( !backEnd.skyRenderedThisView )
{
return;
}
if ( !r_drawSun->integer )
{
return;
}
GL_PushMatrix();
GL_BindProgram( &tr.genericShader );
// set uniforms
GLSL_SetUniform_TCGen_Environment( &tr.genericShader, qfalse );
GLSL_SetUniform_InverseVertexColor( &tr.genericShader, qfalse );
if ( glConfig2.vboVertexSkinningAvailable )
{
GLSL_SetUniform_VertexSkinning( &tr.genericShader, qfalse );
}
GLSL_SetUniform_DeformGen( &tr.genericShader, DGEN_NONE );
GLSL_SetUniform_AlphaTest( &tr.genericShader, -1.0 );
MatrixSetupTranslation( transformMatrix, backEnd.viewParms.orientation.origin[ 0 ], backEnd.viewParms.orientation.origin[ 1 ],
backEnd.viewParms.orientation.origin[ 2 ] );
MatrixMultiply( backEnd.viewParms.world.viewMatrix, transformMatrix, modelViewMatrix );
GL_LoadProjectionMatrix( backEnd.viewParms.projectionMatrix );
GL_LoadModelViewMatrix( modelViewMatrix );
GLSL_SetUniform_ModelMatrix( &tr.genericShader, backEnd.orientation.transformMatrix );
GLSL_SetUniform_ModelViewProjectionMatrix( &tr.genericShader, glState.modelViewProjectionMatrix[ glState.stackIndex ] );
GLSL_SetUniform_PortalClipping( &tr.genericShader, backEnd.viewParms.isPortal );
if ( backEnd.viewParms.isPortal )
{
float plane[ 4 ];
// clipping plane in world space
plane[ 0 ] = backEnd.viewParms.portalPlane.normal[ 0 ];
plane[ 1 ] = backEnd.viewParms.portalPlane.normal[ 1 ];
plane[ 2 ] = backEnd.viewParms.portalPlane.normal[ 2 ];
plane[ 3 ] = backEnd.viewParms.portalPlane.dist;
GLSL_SetUniform_PortalPlane( &tr.genericShader, plane );
}
dist = backEnd.viewParms.skyFar / 1.75; // div sqrt(3)
size = dist * 0.4;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
glDepthRange( 1.0, 1.0 );
// FIXME: use quad stamp
Tess_Begin( Tess_StageIteratorGeneric, tr.sunShader, NULL, tess.skipTangentSpaces, qfalse, -1, tess.fogNum );
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[ tess.numVertexes ] );
tess.xyz[ tess.numVertexes ][ 3 ] = 1;
tess.texCoords[ tess.numVertexes ][ 0 ] = 0;
tess.texCoords[ tess.numVertexes ][ 1 ] = 0;
tess.texCoords[ tess.numVertexes ][ 2 ] = 0;
tess.texCoords[ tess.numVertexes ][ 3 ] = 1;
tess.colors[ tess.numVertexes ][ 0 ] = 1;
tess.colors[ tess.numVertexes ][ 1 ] = 1;
tess.colors[ tess.numVertexes ][ 2 ] = 1;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[ tess.numVertexes ] );
tess.xyz[ tess.numVertexes ][ 3 ] = 1;
tess.texCoords[ tess.numVertexes ][ 0 ] = 0;
tess.texCoords[ tess.numVertexes ][ 1 ] = 1;
tess.texCoords[ tess.numVertexes ][ 2 ] = 0;
tess.texCoords[ tess.numVertexes ][ 3 ] = 1;
tess.colors[ tess.numVertexes ][ 0 ] = 1;
tess.colors[ tess.numVertexes ][ 1 ] = 1;
tess.colors[ tess.numVertexes ][ 2 ] = 1;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[ tess.numVertexes ] );
tess.xyz[ tess.numVertexes ][ 3 ] = 1;
tess.texCoords[ tess.numVertexes ][ 0 ] = 1;
tess.texCoords[ tess.numVertexes ][ 1 ] = 1;
tess.texCoords[ tess.numVertexes ][ 2 ] = 0;
tess.texCoords[ tess.numVertexes ][ 3 ] = 1;
tess.colors[ tess.numVertexes ][ 0 ] = 1;
tess.colors[ tess.numVertexes ][ 1 ] = 1;
tess.colors[ tess.numVertexes ][ 2 ] = 1;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[ tess.numVertexes ] );
tess.xyz[ tess.numVertexes ][ 3 ] = 1;
tess.texCoords[ tess.numVertexes ][ 0 ] = 1;
tess.texCoords[ tess.numVertexes ][ 1 ] = 0;
tess.texCoords[ tess.numVertexes ][ 2 ] = 0;
tess.texCoords[ tess.numVertexes ][ 3 ] = 1;
tess.colors[ tess.numVertexes ][ 0 ] = 1;
tess.colors[ tess.numVertexes ][ 1 ] = 1;
tess.colors[ tess.numVertexes ][ 2 ] = 1;
tess.numVertexes++;
tess.indexes[ tess.numIndexes++ ] = 0;
tess.indexes[ tess.numIndexes++ ] = 1;
tess.indexes[ tess.numIndexes++ ] = 2;
tess.indexes[ tess.numIndexes++ ] = 0;
tess.indexes[ tess.numIndexes++ ] = 2;
tess.indexes[ tess.numIndexes++ ] = 3;
Tess_End();
// back to standard depth range
glDepthRange( 0.0, 1.0 );
GL_PopMatrix();
#endif
}
/*
==================
RB_RenderFlares
Because flares are simulating an occular effect, they should be drawn after
everything (all views) in the entire frame has been drawn.
Because of the way portals use the depth buffer to mark off areas, the
needed information would be lost after each view, so we are forced to draw
flares after each view.
The resulting artifact is that flares in mirrors or portals don't dim properly
when occluded by something in the main view, and portal flares that should
extend past the portal edge will be overwritten.
==================
*/
void RB_RenderFlares(void)
{
flare_t *f;
flare_t **prev;
qboolean draw;
matrix_t ortho;
if(!r_flares->integer)
return;
#if 0
if(r_flareCoeff->modified)
{
if(r_flareCoeff->value == 0.0f)
flareCoeff = atof("150");
else
flareCoeff = r_flareCoeff->value;
r_flareCoeff->modified = qfalse;
}
#endif
// reset currentEntity to world so that any previously referenced entities don't have influence
// on the rendering of these flares (i.e. RF_ renderer flags).
backEnd.currentEntity = &tr.worldEntity;
backEnd.orientation = backEnd.viewParms.world;
GL_LoadModelViewMatrix(backEnd.viewParms.world.modelViewMatrix);
if(tr.world != NULL) // thx Thilo
{
RB_AddLightFlares();
}
// perform z buffer readback on each flare in this view
draw = qfalse;
prev = &r_activeFlares;
while((f = *prev) != NULL)
{
// throw out any flares that weren't added last frame
if(f->addedFrame < backEnd.viewParms.frameCount - 1)
{
*prev = f->next;
f->next = r_inactiveFlares;
r_inactiveFlares = f;
continue;
}
// don't draw any here that aren't from this scene / portal
f->drawIntensity = 0;
if(f->frameSceneNum == backEnd.viewParms.frameSceneNum && f->inPortal == backEnd.viewParms.isPortal)
{
RB_TestFlare(f);
if(f->drawIntensity)
{
draw = qtrue;
}
else
{
// this flare has completely faded out, so remove it from the chain
*prev = f->next;
f->next = r_inactiveFlares;
r_inactiveFlares = f;
continue;
}
}
prev = &f->next;
}
if(!draw)
{
// none visible
return;
}
if(backEnd.viewParms.isPortal)
{
qglDisable(GL_CLIP_PLANE0);
}
GL_CheckErrors();
GL_PushMatrix();
MatrixOrthogonalProjection(ortho, backEnd.viewParms.viewportX,
backEnd.viewParms.viewportX + backEnd.viewParms.viewportWidth,
backEnd.viewParms.viewportY, backEnd.viewParms.viewportY + backEnd.viewParms.viewportHeight,
-99999, 99999);
GL_LoadProjectionMatrix(ortho);
GL_LoadModelViewMatrix(matrixIdentity);
for(f = r_activeFlares; f; f = f->next)
{
if(f->frameSceneNum == backEnd.viewParms.frameSceneNum && f->inPortal == backEnd.viewParms.isPortal && f->drawIntensity)
RB_RenderFlare(f);
}
GL_PopMatrix();
GL_CheckErrors();
}
float applyCropMatrix(frustum_t &f, matrix44_t &mv, int split)
{
matrix44_t shadowMVP, shadowProj, tween;
vec3_t bmin, bmax, extents[5];
vec4_t trans;
SET_VEC4(trans, f.point[0][0], f.point[0][1], f.point[0][2], 1);
M_VectorMatrixMult4(trans, &mv, trans);
SET_VEC3(bmin, 100000, 100000, trans[AXIS_Z]);
SET_VEC3(bmax, -100000, -100000, trans[AXIS_Z]);
for(int i=1;i<8;i++) {
SET_VEC4(trans, f.point[i][0], f.point[i][1], f.point[i][2], 1);
M_VectorMatrixMult4(trans, &mv, trans);
bmax[AXIS_Z] = MAX(bmax[AXIS_Z], trans[AXIS_Z]);
bmin[AXIS_Z] = MIN(bmin[AXIS_Z], trans[AXIS_Z]);
}
//make sure all casters are included in depth (this makes things a bit crappy sometimes but whatever)
World_GetExtents(extents);
for(int i=0;i<5;i++) {
SET_VEC4(trans, extents[i][0], extents[i][2], extents[i][1], 1);
M_VectorMatrixMult4(trans, &mv, trans);
bmax[AXIS_Z] = MAX(bmax[AXIS_Z], trans[AXIS_Z]);
bmin[AXIS_Z] = MIN(bmin[AXIS_Z], trans[AXIS_Z]);
}
bmin[AXIS_Z]-=1050; //oh, the fudge!
//an orthogonal projection matrix
M_OrthogonalProjection(&shadowProj, -1.0, 1.0, -1.0, 1.0, -bmax[AXIS_Z], -bmin[AXIS_Z]);
M_MultiplyMatrix44(&shadowProj, &mv, &shadowMVP);
for(int i=0; i<8; i++)
{
SET_VEC4(trans, f.point[i][0], f.point[i][1], f.point[i][2], 1);
M_VectorMatrixMult4(trans, &shadowMVP, trans);
trans[AXIS_X] /= trans[3];
trans[AXIS_Y] /= trans[3];
bmin[AXIS_X] = MIN(bmin[AXIS_X], trans[AXIS_X]);
bmax[AXIS_X] = MAX(bmax[AXIS_X], trans[AXIS_X]);
bmin[AXIS_Y] = MIN(bmin[AXIS_Y], trans[AXIS_Y]);
bmax[AXIS_Y] = MAX(bmax[AXIS_Y], trans[AXIS_Y]);
}
float scaleX = 2.0f/(bmax[AXIS_X]-bmin[AXIS_X]);
float scaleY = 2.0f/(bmax[AXIS_Y]-bmin[AXIS_Y]);
float offsetX = -0.5f*(bmax[AXIS_X]+bmin[AXIS_X])*scaleX;
float offsetY = -0.5f*(bmax[AXIS_Y]+bmin[AXIS_Y])*scaleY;
M_Identity44(&shadowMVP);
shadowMVP.f.f00 = scaleX;
shadowMVP.f.f11 = scaleY;
shadowMVP.f.f03 = offsetX*0.05f;
shadowMVP.f.f13 = offsetY*0.05f;
M_TransposeMat4x4(shadowMVP);
GL_MatrixMode(GL_PROJECTION);
GL_PushMatrix();
glLoadMatrixf(shadowMVP.matrix);
glMultMatrixf(shadowProj.matrix);
M_MultiplyMatrix44(&shadowMVP, &shadowProj, &tween);
M_MultiplyMatrix44(&tween, &mv, &lightPerspective[split]);
return bmin[AXIS_Z];
}
/*
** RB_DrawSun
*/
void RB_DrawSun(void)
{
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
matrix_t transformMatrix;
matrix_t modelViewMatrix;
if (!backEnd.skyRenderedThisView)
{
return;
}
if (!r_drawSun->integer)
{
return;
}
#if defined(USE_D3D10)
//TODO
#else
GL_PushMatrix();
gl_genericShader->DisableAlphaTesting();
gl_genericShader->DisablePortalClipping();
gl_genericShader->DisableVertexSkinning();
gl_genericShader->DisableVertexAnimation();
gl_genericShader->DisableDeformVertexes();
gl_genericShader->DisableTCGenEnvironment();
gl_genericShader->BindProgram();
// set uniforms
gl_genericShader->SetUniform_ColorModulate(CGEN_VERTEX, AGEN_VERTEX);
#endif
MatrixSetupTranslation(transformMatrix, backEnd.viewParms.orientation.origin[0], backEnd.viewParms.orientation.origin[1], backEnd.viewParms.orientation.origin[2]);
MatrixMultiplyMOD(backEnd.viewParms.world.viewMatrix, transformMatrix, modelViewMatrix);
#if defined(USE_D3D10)
//TODO
#else
GL_LoadProjectionMatrix(backEnd.viewParms.projectionMatrix);
GL_LoadModelViewMatrix(modelViewMatrix);
gl_genericShader->SetUniform_ModelMatrix(backEnd.orientation.transformMatrix);
gl_genericShader->SetUniform_ModelViewProjectionMatrix(glState.modelViewProjectionMatrix[glState.stackIndex]);
gl_genericShader->SetPortalClipping(backEnd.viewParms.isPortal);
#endif
if (backEnd.viewParms.isPortal)
{
float plane[4];
// clipping plane in world space
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
#if defined(USE_D3D10)
//TODO
#else
gl_genericShader->SetUniform_PortalPlane(plane);
#endif
}
dist = backEnd.viewParms.skyFar / 1.75; // div sqrt(3)
size = dist * 0.4;
VectorScale(tr.sunDirection, dist, origin);
PerpendicularVector(vec1, tr.sunDirection);
CrossProduct(tr.sunDirection, vec1, vec2);
VectorScale(vec1, size, vec1);
VectorScale(vec2, size, vec2);
// farthest depth range
#if defined(USE_D3D10)
//TODO
#else
glDepthRange(1.0, 1.0);
#endif
// FIXME: use quad stamp
Tess_Begin(Tess_StageIteratorGeneric, NULL, tr.sunShader, NULL, tess.skipTangentSpaces, qfalse, -1, tess.fogNum);
VectorCopy(origin, temp);
VectorSubtract(temp, vec1, temp);
VectorSubtract(temp, vec2, temp);
VectorCopy(temp, tess.xyz[tess.numVertexes]);
tess.xyz[tess.numVertexes][3] = 1;
tess.texCoords[tess.numVertexes][0] = 0;
tess.texCoords[tess.numVertexes][1] = 0;
tess.texCoords[tess.numVertexes][2] = 0;
tess.texCoords[tess.numVertexes][3] = 1;
tess.colors[tess.numVertexes][0] = 1;
tess.colors[tess.numVertexes][1] = 1;
tess.colors[tess.numVertexes][2] = 1;
tess.numVertexes++;
VectorCopy(origin, temp);
VectorAdd(temp, vec1, temp);
VectorSubtract(temp, vec2, temp);
VectorCopy(temp, tess.xyz[tess.numVertexes]);
tess.xyz[tess.numVertexes][3] = 1;
tess.texCoords[tess.numVertexes][0] = 0;
tess.texCoords[tess.numVertexes][1] = 1;
tess.texCoords[tess.numVertexes][2] = 0;
tess.texCoords[tess.numVertexes][3] = 1;
tess.colors[tess.numVertexes][0] = 1;
tess.colors[tess.numVertexes][1] = 1;
tess.colors[tess.numVertexes][2] = 1;
tess.numVertexes++;
VectorCopy(origin, temp);
VectorAdd(temp, vec1, temp);
VectorAdd(temp, vec2, temp);
VectorCopy(temp, tess.xyz[tess.numVertexes]);
tess.xyz[tess.numVertexes][3] = 1;
tess.texCoords[tess.numVertexes][0] = 1;
tess.texCoords[tess.numVertexes][1] = 1;
tess.texCoords[tess.numVertexes][2] = 0;
tess.texCoords[tess.numVertexes][3] = 1;
tess.colors[tess.numVertexes][0] = 1;
tess.colors[tess.numVertexes][1] = 1;
tess.colors[tess.numVertexes][2] = 1;
tess.numVertexes++;
VectorCopy(origin, temp);
VectorSubtract(temp, vec1, temp);
VectorAdd(temp, vec2, temp);
VectorCopy(temp, tess.xyz[tess.numVertexes]);
tess.xyz[tess.numVertexes][3] = 1;
tess.texCoords[tess.numVertexes][0] = 1;
tess.texCoords[tess.numVertexes][1] = 0;
tess.texCoords[tess.numVertexes][2] = 0;
tess.texCoords[tess.numVertexes][3] = 1;
tess.colors[tess.numVertexes][0] = 1;
tess.colors[tess.numVertexes][1] = 1;
tess.colors[tess.numVertexes][2] = 1;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
Tess_End();
// back to normal depth range
#if defined(USE_D3D10)
//TODO
#else
glDepthRange(0.0, 1.0);
GL_PopMatrix();
#endif
}