-
- GLuint type;
- if (framebuffer_format == GL_RGBA8) {
- type = GL_UNSIGNED_BYTE;
- } else if (framebuffer_format == GL_RGBA16F || framebuffer_format == GL_RGBA32F) {
- type = GL_FLOAT;
- } else {
- // Add more here as needed.
- assert(false);
- }
-
- glGenTextures(1, &texnum);
- check_error();
- glBindTexture(GL_TEXTURE_2D, texnum);
- check_error();
- glTexImage2D(GL_TEXTURE_2D, 0, framebuffer_format, width, height, 0, GL_RGBA, type, NULL);
- check_error();
-
- glGenFramebuffers(1, &fbo);
- check_error();
- glBindFramebuffer(GL_FRAMEBUFFER, fbo);
- check_error();
- glFramebufferTexture2D(
- GL_FRAMEBUFFER,
- GL_COLOR_ATTACHMENT0,
- GL_TEXTURE_2D,
- texnum,
- 0);
- check_error();
- glBindFramebuffer(GL_FRAMEBUFFER, 0);
- check_error();