I think it'll be the best if I just put the code here:
void CRenderTarget::init(RenderTargetFormat renderTargetFormat, int width, int height)
{
this->width = width;
this->height = height;
glGenFramebuffersEXT(1, &id);
glGenTextures(1, &textureColor);
glGenTextures(1, &textureDepthStencil);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, id);
glBindTexture(GL_TEXTURE_2D, textureColor);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glGenerateMipmapEXT(GL_TEXTURE_2D);
if (renderTargetFormat == rtfRGBA)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA32F_ARB, width, height, 0, GL_ALPHA, GL_FLOAT, NULL);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, textureColor, 0);
glBindTexture(GL_TEXTURE_2D, textureDepthStencil);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8_EXT, width, height, 0, GL_DEPTH_STENCIL_EXT, GL_UNSIGNED_INT_24_8_EXT, NULL);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, textureDepthStencil, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_TEXTURE_2D, textureDepthStencil, 0);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
CLogger::addText("OK: render target created\n");
}
And somewhere else in my renderer:
void CRenderer::setTexture(int sampler, const CRenderTarget &renderTarget)
{
glActiveTexture(GL_TEXTURE0 + sampler);
glBindTexture(GL_TEXTURE_2D, renderTarget.textureColor);
glGenerateMipmapEXT(GL_TEXTURE_2D);
}
And now I have problems with moving glGenerateMipmapEXT into renderTarget::init. It's unnecessary to call this function every setTexture call, so I wanted to move to renderTarget::init but when I do, I get black color where my FBO image should be.
Can anyone, please, tell me, where glGenerateMipmap should go?
