void cToneMappingShader::EndDraw()
{
if(m_pOriginalFrameBuffer)
{
m_pOriginalFrameBuffer->EndDraw();
DoDownSample();
DoBlur(this->m_pHoricontalBlur,m_pDownSampleBrightShader->GetFrameBuffer());
DoBlur(this->m_pVerticalBlur,m_pHoricontalBlur->GetFrameBuffer());
this->Use();
float l_fTextureCoordinate[] ={0,1,1,0};
DrawQuadWithTextureAndColorAndCoordinate(0.f,0.f,0.f,cGameApp::m_svGameResolution.x,cGameApp::m_svGameResolution.y,Vector4::One,l_fTextureCoordinate,Vector3::Zero,this->GetName());
//if( cGameApp::m_sucKeyData['D'] )
{
DebugRender();
}
}
}
void RenderScreenGlowShader(void)
{
// check to see if we can render it.
if (IEngineStudio.IsHardware() != 1){
return;
}
/* AJH - This is redundant as the function now returns if r_glow!=1
//check the cvar for the glow is on.
if (CVAR_GET_FLOAT("r_glow") == 0)
return;
*/
//if the mode isn't shader then return.
if (CVAR_GET_FLOAT("r_glow") != 1)
return;
if (!bGlowShaderInitialised)
InitScreenGlowShader();
if (!bGlowShaderInitialised){ //if the initialisation dosent work for some reason
gEngfuncs.Cvar_SetValue( "r_glow", 0 );
return;
}
// STEP 1: Grab the screen and put it into a texture
pglActiveTextureARB(GL_TEXTURE0_ARB);
glEnable(GL_TEXTURE_RECTANGLE_NV);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, g_uiSceneTex);
glCopyTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, GL_RGB, 0, 0, ScreenWidth, ScreenHeight, 0);
// STEP 2: Set up an orthogonal projection
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, 1, 1, 0, 0.1, 100);
glColor3f(1,1,1);
// STEP 3: Initialize Cg programs and parameters for darken
cgGLEnableProfile(g_cgVertProfile);
cgGLEnableProfile(g_cgFragProfile);
cgGLBindProgram(g_cgVP_GlowDarken);
cgGLBindProgram(g_cgFP_GlowDarken);
cgGLSetStateMatrixParameter(g_cgpVP0_ModelViewMatrix, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
// STEP 4: Render the current scene texture to a new, lower-res texture, darkening non-bright areas of the scene
glViewport(0, 0, ScreenWidth/4, ScreenHeight/4);
pglActiveTextureARB(GL_TEXTURE0_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, g_uiSceneTex);
DrawQuad(ScreenWidth, ScreenHeight);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, g_uiBlurTex);
glCopyTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, GL_RGB, 0, 0, ScreenWidth/4, ScreenHeight/4, 0);
// STEP 5: Initialise Cg programs and parameters for blurring
cgGLBindProgram(g_cgVP_GlowBlur);
cgGLBindProgram(g_cgFP_GlowBlur);
cgGLSetStateMatrixParameter(g_cgpVP1_ModelViewMatrix, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
// STEP 6: Apply blur
int iNumBlurSteps = CVAR_GET_FLOAT("r_glowblur"); //use new CVAR --FragBait0
for (int i = 0; i < iNumBlurSteps; i++) {
DoBlur(g_uiBlurTex, g_uiBlurTex, ScreenWidth/4, ScreenHeight/4, ScreenWidth/4, ScreenHeight/4, 1, 0);
DoBlur(g_uiBlurTex, g_uiBlurTex, ScreenWidth/4, ScreenHeight/4, ScreenWidth/4, ScreenHeight/4, 0, 1);
}
// STEP 7: Set up Cg for combining blurred glow with original scene
cgGLBindProgram(g_cgVP_GlowCombine);
cgGLBindProgram(g_cgFP_GlowCombine);
cgGLSetStateMatrixParameter(g_cgpVP2_ModelViewMatrix, CG_GL_MODELVIEW_PROJECTION_MATRIX, CG_GL_MATRIX_IDENTITY);
pglActiveTextureARB(GL_TEXTURE0_ARB);
glEnable(GL_TEXTURE_RECTANGLE_NV);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, g_uiSceneTex);
pglActiveTextureARB(GL_TEXTURE1_ARB);
glEnable(GL_TEXTURE_RECTANGLE_NV);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, g_uiBlurTex);
// STEP 8: Do the combination, rendering to the screen without grabbing it to a texture
glViewport(0, 0, ScreenWidth, ScreenHeight);
DrawQuad(ScreenWidth/4, ScreenHeight/4);
// STEP 9: Restore the original projection and modelview matrices and disable rectangular textures on all units
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
cgGLDisableProfile(g_cgVertProfile);
cgGLDisableProfile(g_cgFragProfile);
pglActiveTextureARB(GL_TEXTURE0_ARB);
glDisable(GL_TEXTURE_RECTANGLE_NV);
pglActiveTextureARB(GL_TEXTURE1_ARB);
glDisable(GL_TEXTURE_RECTANGLE_NV);
pglActiveTextureARB(GL_TEXTURE2_ARB);
glDisable(GL_TEXTURE_RECTANGLE_NV);
pglActiveTextureARB(GL_TEXTURE3_ARB);
glDisable(GL_TEXTURE_RECTANGLE_NV);
pglActiveTextureARB(GL_TEXTURE0_ARB);
glClear(GL_DEPTH_BUFFER_BIT);
}
