PulseStudio/VoxelEngine
PulseStudio/VoxelEngine
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fix gbuffer resizing

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This commit is contained in:
MihailRis 2025-07-12 22:10:42 +03:00
parent a0b8776477
commit bcdb891321
2 changed files with 25 additions and 63 deletions
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74
src/graphics/core/GBuffer.cpp
View File

@ -11,7 +11,8 @@ static debug::Logger logger("gl-gbuffer");
// TODO: REFACTOR // TODO: REFACTOR
void GBuffer::createColorBuffer() { void GBuffer::createColorBuffer() {
glGenTextures(1, &colorBuffer); if (colorBuffer == 0)
glGenTextures(1, &colorBuffer);
glBindTexture(GL_TEXTURE_2D, colorBuffer); glBindTexture(GL_TEXTURE_2D, colorBuffer);
glTexImage2D( glTexImage2D(
GL_TEXTURE_2D, GL_TEXTURE_2D,
@ -34,7 +35,8 @@ void GBuffer::createColorBuffer() {
} }
void GBuffer::createPositionsBuffer() { void GBuffer::createPositionsBuffer() {
glGenTextures(1, &positionsBuffer); if (positionsBuffer == 0)
glGenTextures(1, &positionsBuffer);
glBindTexture(GL_TEXTURE_2D, positionsBuffer); glBindTexture(GL_TEXTURE_2D, positionsBuffer);
glTexImage2D( glTexImage2D(
GL_TEXTURE_2D, GL_TEXTURE_2D,
@ -57,7 +59,8 @@ void GBuffer::createPositionsBuffer() {
} }
void GBuffer::createNormalsBuffer() { void GBuffer::createNormalsBuffer() {
glGenTextures(1, &normalsBuffer); if (normalsBuffer == 0)
glGenTextures(1, &normalsBuffer);
glBindTexture(GL_TEXTURE_2D, normalsBuffer); glBindTexture(GL_TEXTURE_2D, normalsBuffer);
glTexImage2D( glTexImage2D(
GL_TEXTURE_2D, GL_TEXTURE_2D,
@ -80,7 +83,8 @@ void GBuffer::createNormalsBuffer() {
} }
void GBuffer::createEmissionBuffer() { void GBuffer::createEmissionBuffer() {
glGenTextures(1, &emissionBuffer); if (emissionBuffer == 0)
glGenTextures(1, &emissionBuffer);
glBindTexture(GL_TEXTURE_2D, emissionBuffer); glBindTexture(GL_TEXTURE_2D, emissionBuffer);
glTexImage2D( glTexImage2D(
GL_TEXTURE_2D, GL_TEXTURE_2D,
@ -103,7 +107,8 @@ void GBuffer::createEmissionBuffer() {
} }
void GBuffer::createDepthBuffer() { void GBuffer::createDepthBuffer() {
glGenRenderbuffers(1, &depthBuffer); if (depthBuffer == 0)
glGenRenderbuffers(1, &depthBuffer);
glBindRenderbuffer(GL_RENDERBUFFER, depthBuffer); glBindRenderbuffer(GL_RENDERBUFFER, depthBuffer);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
glFramebufferRenderbuffer( glFramebufferRenderbuffer(
@ -112,7 +117,8 @@ void GBuffer::createDepthBuffer() {
} }
void GBuffer::createSSAOBuffer() { void GBuffer::createSSAOBuffer() {
glGenTextures(1, &ssaoBuffer); if (ssaoBuffer == 0)
glGenTextures(1, &ssaoBuffer);
glBindTexture(GL_TEXTURE_2D, ssaoBuffer); glBindTexture(GL_TEXTURE_2D, ssaoBuffer);
glTexImage2D( glTexImage2D(
GL_TEXTURE_2D, GL_TEXTURE_2D,
@ -233,61 +239,17 @@ void GBuffer::resize(uint width, uint height) {
glBindFramebuffer(GL_FRAMEBUFFER, fbo); glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glBindRenderbuffer(GL_RENDERBUFFER, depthBuffer); createDepthBuffer();
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height); createColorBuffer();
glBindRenderbuffer(GL_RENDERBUFFER, 0); createPositionsBuffer();
createNormalsBuffer();
glBindTexture(GL_TEXTURE_2D, colorBuffer); createEmissionBuffer();
glTexImage2D(
GL_TEXTURE_2D,
0,
GL_RGB,
width,
height,
0,
GL_RGB,
GL_UNSIGNED_BYTE,
nullptr
);
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorBuffer, 0
);
glBindTexture(GL_TEXTURE_2D, positionsBuffer);
glTexImage2D(
GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGB, GL_FLOAT, nullptr
);
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, positionsBuffer, 0
);
glBindTexture(GL_TEXTURE_2D, normalsBuffer);
glTexImage2D(
GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGBA, GL_FLOAT, nullptr
);
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, normalsBuffer, 0
);
glBindTexture(GL_TEXTURE_2D, emissionBuffer);
glTexImage2D(
GL_TEXTURE_2D, 0, GL_INTENSITY, width, height, 0, GL_LUMINANCE, GL_FLOAT, nullptr
);
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3, GL_TEXTURE_2D, emissionBuffer, 0
);
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
glBindFramebuffer(GL_FRAMEBUFFER, 0); glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER, ssaoFbo); glBindFramebuffer(GL_FRAMEBUFFER, ssaoFbo);
glBindTexture(GL_TEXTURE_2D, ssaoBuffer); createSSAOBuffer();
glTexImage2D(
GL_TEXTURE_2D, 0, GL_R16F, width, height, 0, GL_RED, GL_FLOAT, nullptr
);
glFramebufferTexture2D(
GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, ssaoBuffer, 0
);
glBindTexture(GL_TEXTURE_2D, 0); glBindTexture(GL_TEXTURE_2D, 0);
glBindFramebuffer(GL_FRAMEBUFFER, 0); glBindFramebuffer(GL_FRAMEBUFFER, 0);
} }

14
src/graphics/core/GBuffer.hpp
View File

@ -29,13 +29,13 @@ private:
uint height; uint height;
uint fbo; uint fbo;
uint colorBuffer; uint colorBuffer = 0;
uint positionsBuffer; uint positionsBuffer = 0;
uint normalsBuffer; uint normalsBuffer = 0;
uint emissionBuffer; uint emissionBuffer = 0;
uint depthBuffer; uint depthBuffer = 0;
uint ssaoFbo; uint ssaoFbo = 0;
uint ssaoBuffer; uint ssaoBuffer = 0;
void createColorBuffer(); void createColorBuffer();
void createPositionsBuffer(); void createPositionsBuffer();