inventory render optimized

src/graphics/Framebuffer.cpp

@@ -3,13 +3,15 @@
 #include <GL/glew.h>
 #include "Texture.h"
 
-Framebuffer::Framebuffer(uint width, uint height) : width(width), height(height) {
+Framebuffer::Framebuffer(uint width, uint height, bool alpha) 
+    : width(width), height(height) {
 	glGenFramebuffers(1, &fbo);
 	bind();
 	GLuint tex;
 	glGenTextures(1, &tex);
 	glBindTexture(GL_TEXTURE_2D, tex);
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
+    GLuint format = alpha ? GL_RGBA : GL_RGB;
+	glTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, format, GL_UNSIGNED_BYTE, nullptr);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);