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Bloom: Blit fbo instead of using a shader

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This commit is contained in:
Vincent Lejeune 2014-04-18 18:45:00 +02:00
parent 9b926ce713
commit b77a20f621
1 changed files with 8 additions and 6 deletions
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14
src/graphics/post_processing.cpp
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@ -630,13 +630,15 @@ void PostProcessing::render()
renderBloom(irr_driver->getRenderTargetTexture(RTT_BLOOM_1024)); renderBloom(irr_driver->getRenderTargetTexture(RTT_BLOOM_1024));
// Downsample // Downsample
glBindFramebuffer(GL_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_256)); glBindFramebuffer(GL_READ_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_512));
glViewport(0, 0, 256, 256); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_256));
renderPassThrough(irr_driver->getRenderTargetTexture(RTT_BLOOM_512)); glBlitFramebuffer(0, 0, 512, 512, 0, 0, 256, 256, GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBindFramebuffer(GL_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_128)); glBindFramebuffer(GL_READ_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_256));
glViewport(0, 0, 128, 128); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, irr_driver->getFBO(FBO_BLOOM_128));
renderPassThrough(irr_driver->getRenderTargetTexture(RTT_BLOOM_256)); glBlitFramebuffer(0, 0, 256, 256, 0, 0, 128, 128, GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
// Blur // Blur
glViewport(0, 0, 512, 512); glViewport(0, 0, 512, 512);