PulseStudio/VoxelEngine
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initial commit

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This commit is contained in:
MihailRis
2025-05-07 20:42:50 +03:00
parent 27b194816b
commit fc46b7c434
36 changed files with 754 additions and 70 deletions
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src/graphics/core/Framebuffer.cpp
+53 -3
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@@ -2,6 +2,9 @@
#include <GL/glew.h>
#include "Texture.hpp"
#include "debug/Logger.hpp"
static debug::Logger logger("gl-framebuffer");
Framebuffer::Framebuffer(uint fbo, uint depth, std::unique_ptr<Texture> texture)
: fbo(fbo), depth(depth), texture(std::move(texture))
@@ -38,18 +41,41 @@ Framebuffer::Framebuffer(uint width, uint height, bool alpha)
// Setup color attachment (texture)
texture = create_texture(width, height, format);
glGenTextures(1, &positions);
glBindTexture(GL_TEXTURE_2D, positions);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, positions, 0);
glGenTextures(1, &normals);
glBindTexture(GL_TEXTURE_2D, normals);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, normals, 0);
unsigned int attachments[3] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
glDrawBuffers(3, attachments);
// Setup depth attachment
glGenRenderbuffers(1, &depth);
glBindRenderbuffer(GL_RENDERBUFFER, depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
logger.error() << "framebuffer is not complete!";
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
Framebuffer::~Framebuffer() {
glDeleteFramebuffers(1, &fbo);
glDeleteRenderbuffers(1, &depth);
glDeleteTextures(1, &normals);
glDeleteTextures(1, &depth);
}
void Framebuffer::bind() {
@@ -60,6 +86,19 @@ void Framebuffer::unbind() {
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
void Framebuffer::bindBuffers() {
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture->getId());
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, positions);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, normals);
glActiveTexture(GL_TEXTURE0);
}
void Framebuffer::resize(uint width, uint height) {
if (this->width == width && this->height == height) {
return;
@@ -67,11 +106,22 @@ void Framebuffer::resize(uint width, uint height) {
this->width = width;
this->height = height;
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glBindRenderbuffer(GL_RENDERBUFFER, depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT24, width, height);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glBindTexture(GL_TEXTURE_2D, positions);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, positions, 0);
glBindTexture(GL_TEXTURE_2D, normals);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, width, height, 0, GL_RGB, GL_FLOAT, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, normals, 0);
glBindTexture(GL_TEXTURE_2D, 0);
texture = create_texture(width, height, format);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}