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Fix SSAO perf

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I was using wrong mipmap count for linear depth rtt.
This commit is contained in:
vlj 2014-06-03 01:59:22 +02:00
parent b5e6e5e054
commit 783464ee81
1 changed files with 6 additions and 4 deletions
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10
src/graphics/rtts.cpp
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@ -22,7 +22,7 @@
#include "graphics/irr_driver.hpp"
#include "utils/log.hpp"
static GLuint generateRTT(const core::dimension2du &res, GLint internalFormat, GLint format, GLint type)
static GLuint generateRTT(const core::dimension2du &res, GLint internalFormat, GLint format, GLint type, unsigned mipmaplevel = 1)
{
GLuint result;
glGenTextures(1, &result);
@ -30,7 +30,7 @@ static GLuint generateRTT(const core::dimension2du &res, GLint internalFormat, G
if (irr_driver->getGLSLVersion() < 420)
glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, res.Width, res.Height, 0, format, type, 0);
else
glTexStorage2D(GL_TEXTURE_2D, 1, internalFormat, res.Width, res.Height);
glTexStorage2D(GL_TEXTURE_2D, mipmaplevel, internalFormat, res.Width, res.Height);
return result;
}
@ -77,6 +77,8 @@ RTT::RTT(size_t width, size_t height)
const dimension2du warpvsize(1, 512);
const dimension2du warphsize(512, 1);
unsigned linear_depth_mip_levels = ceil(log2(max_(res.Width, res.Height)));
glGenTextures(1, &DepthStencilTexture);
glBindTexture(GL_TEXTURE_2D, DepthStencilTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_STENCIL, res.Width, res.Height, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
@ -88,10 +90,10 @@ RTT::RTT(size_t width, size_t height)
RenderTargetTextures[RTT_TMP2] = generateRTT(res, GL_RGBA16F, GL_BGRA, GL_FLOAT);
RenderTargetTextures[RTT_TMP3] = generateRTT(res, GL_RGBA16F, GL_BGRA, GL_FLOAT);
RenderTargetTextures[RTT_TMP4] = generateRTT(res, GL_R16F, GL_RED, GL_FLOAT);
RenderTargetTextures[RTT_LINEAR_DEPTH] = generateRTT(res, GL_R32F, GL_RED, GL_FLOAT);
RenderTargetTextures[RTT_LINEAR_DEPTH] = generateRTT(res, GL_R32F, GL_RED, GL_FLOAT, linear_depth_mip_levels);
RenderTargetTextures[RTT_NORMAL_AND_DEPTH] = generateRTT(res, GL_RGBA16F, GL_RGBA, GL_FLOAT);
RenderTargetTextures[RTT_COLOR] = generateRTT(res, GL_RGBA16F, GL_BGRA, GL_FLOAT);
RenderTargetTextures[RTT_MLAA_COLORS] = generateRTT(res, GL_SRGB8, GL_BGR, GL_UNSIGNED_BYTE);
RenderTargetTextures[RTT_MLAA_COLORS] = generateRTT(res, GL_SRGB, GL_BGR, GL_UNSIGNED_BYTE);
RenderTargetTextures[RTT_SSAO] = generateRTT(res, GL_R16F, GL_RED, GL_FLOAT);
RenderTargetTextures[RTT_DISPLACE] = generateRTT(res, GL_RGBA16F, GL_BGRA, GL_FLOAT);