void CRefractWater::Draw()
{
if(readmap->minheight>10)
return;
glActiveTextureARB(GL_TEXTURE2_ARB);
glBindTexture(target, subSurfaceTex);
glEnable(target);
glCopyTexSubImage2D(target, 0, 0, 0, 0, 0, gu->screenx, gu->screeny);
SetupWaterDepthTex();
glActiveTextureARB(GL_TEXTURE0_ARB);
// GL_TEXTURE_RECTANGLE uses texcoord range 0 to width, whereas GL_TEXTURE_2D uses 0 to 1
if (target == GL_TEXTURE_RECTANGLE_ARB) {
float v[] = { 0.04f * gu->screenx, 0.04f * gu->screeny, 0.0f, 0.0f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 2, v);
} else {
float v[] = { 0.04f, 0.04f, 0.0f, 0.0f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 2, v);
v[0] = 1.0f / next_power_of_2(gu->screenx);
v[1] = 1.0f / next_power_of_2(gu->screeny);
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 3, v);
}
CAdvWater::Draw(false);
glActiveTextureARB(GL_TEXTURE3_ARB);
glDisable(GL_TEXTURE_2D);
glActiveTextureARB(GL_TEXTURE2_ARB);
glDisable(target);
glActiveTextureARB(GL_TEXTURE0_ARB);
}
void CRefractWater::Draw()
{
if (!mapInfo->water.forceRendering && (readmap->currMinHeight > 1.0f)) {
return;
}
glActiveTextureARB(GL_TEXTURE2_ARB);
glBindTexture(target, subSurfaceTex);
glEnable(target);
glCopyTexSubImage2D(target, 0, 0, 0, 0, 0, globalRendering->viewSizeX, globalRendering->viewSizeY);
SetupWaterDepthTex();
glActiveTextureARB(GL_TEXTURE0_ARB);
// GL_TEXTURE_RECTANGLE uses texcoord range 0 to width, whereas GL_TEXTURE_2D uses 0 to 1
if (target == GL_TEXTURE_RECTANGLE_ARB) {
float v[] = { 10.0f * globalRendering->viewSizeX, 10.0f * globalRendering->viewSizeY, 0.0f, 0.0f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 2, v);
} else {
float v[] = { 10.0f, 10.0f, 0.0f, 0.0f };
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 2, v);
v[0] = 1.0f / next_power_of_2(globalRendering->viewSizeX);
v[1] = 1.0f / next_power_of_2(globalRendering->viewSizeY);
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 3, v);
}
CAdvWater::Draw(false);
glActiveTextureARB(GL_TEXTURE3_ARB);
glDisable(GL_TEXTURE_2D);
glDisable(GL_TEXTURE_GEN_S);
glDisable(GL_TEXTURE_GEN_T);
glActiveTextureARB(GL_TEXTURE2_ARB);
glDisable(target);
glActiveTextureARB(GL_TEXTURE0_ARB);
}