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Use immutable storage for depth/shadows/RSM

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This commit is contained in:
Vincent Lejeune
2014-06-05 00:21:55 +02:00
committed by vlj
parent 5b400b7ccb
commit 03b66f4f59
1 changed files with 21 additions and 27 deletions
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48
src/graphics/rtts.cpp
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@@ -22,6 +22,18 @@
#include "graphics/irr_driver.hpp"
#include "utils/log.hpp"
static GLuint generateRTT3D(GLenum target, size_t w, size_t h, size_t d, GLint internalFormat, GLint format, GLint type)
{
GLuint result;
glGenTextures(1, &result);
glBindTexture(target, result);
if (irr_driver->getGLSLVersion() < 420)
glTexImage3D(target, 0, internalFormat, w, h, d, 0, format, type, 0);
else
glTexStorage3D(target, 1, internalFormat, w, h, d);
return result;
}
static GLuint generateRTT(const core::dimension2du &res, GLint internalFormat, GLint format, GLint type, unsigned mipmaplevel = 1)
{
GLuint result;
@@ -79,9 +91,7 @@ RTT::RTT(size_t width, size_t height)
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);
DepthStencilTexture = generateRTT(res, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
// All RTTs are currently RGBA16F mostly with stencil. The four tmp RTTs are the same size
// as the screen, for use in post-processing.
@@ -195,12 +205,8 @@ RTT::RTT(size_t width, size_t height)
if (UserConfigParams::m_shadows)
{
glGenTextures(1, &shadowColorTex);
glBindTexture(GL_TEXTURE_2D_ARRAY, shadowColorTex);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_R8, 1024, 1024, 4, 0, GL_RED, GL_UNSIGNED_BYTE, 0);
glGenTextures(1, &shadowDepthTex);
glBindTexture(GL_TEXTURE_2D_ARRAY, shadowDepthTex);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_DEPTH_STENCIL, 1024, 1024, 4, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
shadowColorTex = generateRTT3D(GL_TEXTURE_2D_ARRAY, 1024, 1024, 4, GL_R8, GL_RED, GL_UNSIGNED_BYTE);
shadowDepthTex = generateRTT3D(GL_TEXTURE_2D_ARRAY, 1024, 1024, 4, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
somevector.clear();
somevector.push_back(shadowColorTex);
@@ -210,30 +216,18 @@ RTT::RTT(size_t width, size_t height)
if (UserConfigParams::m_gi)
{
//Todo : use "normal" shadowtex
glGenTextures(1, &RSM_Color);
glBindTexture(GL_TEXTURE_2D, RSM_Color);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, 1024, 1024, 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
glGenTextures(1, &RSM_Normal);
glBindTexture(GL_TEXTURE_2D, RSM_Normal);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, 1024, 1024, 0, GL_RGB, GL_FLOAT, 0);
glGenTextures(1, &RSM_Depth);
glBindTexture(GL_TEXTURE_2D, RSM_Depth);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_STENCIL, 1024, 1024, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, 0);
RSM_Color = generateRTT(shadowsize0, GL_RGB8, GL_RGB, GL_UNSIGNED_BYTE);
RSM_Normal = generateRTT(shadowsize0, GL_RGB16F, GL_RGB, GL_FLOAT);
RSM_Depth = generateRTT(shadowsize0, GL_DEPTH24_STENCIL8, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
somevector.clear();
somevector.push_back(RSM_Color);
somevector.push_back(RSM_Normal);
m_RSM = new FrameBuffer(somevector, RSM_Depth, 1024, 1024, true);
glGenTextures(1, &RH_Red);
glBindTexture(GL_TEXTURE_3D, RH_Red);
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA16F, 32, 16, 32, 0, GL_RGBA, GL_FLOAT, 0);
glGenTextures(1, &RH_Green);
glBindTexture(GL_TEXTURE_3D, RH_Green);
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA16F, 32, 16, 32, 0, GL_RGBA, GL_FLOAT, 0);
glGenTextures(1, &RH_Blue);
glBindTexture(GL_TEXTURE_3D, RH_Blue);
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA16F, 32, 16, 32, 0, GL_RGBA, GL_FLOAT, 0);
RH_Red = generateRTT3D(GL_TEXTURE_3D, 32, 16, 32, GL_RGBA16F, GL_RGBA, GL_FLOAT);
RH_Green = generateRTT3D(GL_TEXTURE_3D, 32, 16, 32, GL_RGBA16F, GL_RGBA, GL_FLOAT);
RH_Blue = generateRTT3D(GL_TEXTURE_3D, 32, 16, 32, GL_RGBA16F, GL_RGBA, GL_FLOAT);
somevector.clear();
somevector.push_back(RH_Red);