diff options
author | Dan Goodliffe <dan.goodliffe@octal.co.uk> | 2022-12-08 16:09:48 +0000 |
---|---|---|
committer | Dan Goodliffe <dan.goodliffe@octal.co.uk> | 2022-12-08 16:09:48 +0000 |
commit | 6867a0404b87b8f793596ae3134a58a79711d6a7 (patch) | |
tree | f742a6f7e137877b9513c94ade6f7e972b664086 /gfx/gl | |
parent | Tidy up (diff) | |
download | ilt-6867a0404b87b8f793596ae3134a58a79711d6a7.tar.bz2 ilt-6867a0404b87b8f793596ae3134a58a79711d6a7.tar.xz ilt-6867a0404b87b8f793596ae3134a58a79711d6a7.zip |
Support fall-back internal framebuffer formats, use smaller and/or standard formats
Diffstat (limited to 'gfx/gl')
-rw-r--r-- | gfx/gl/sceneRenderer.cpp | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/gfx/gl/sceneRenderer.cpp b/gfx/gl/sceneRenderer.cpp index 0b2da0f..ecf83a0 100644 --- a/gfx/gl/sceneRenderer.cpp +++ b/gfx/gl/sceneRenderer.cpp @@ -26,26 +26,29 @@ SceneRenderer::SceneRenderer(glm::ivec2 s, GLuint o) : glBindFramebuffer(GL_FRAMEBUFFER, gBuffer); const auto configuregdata - = [this](const GLuint data, const GLint format, const GLenum type, const GLenum attachment) { + = [this](const GLuint data, const std::initializer_list<GLint> formats, const GLenum attachment) { glBindTexture(GL_TEXTURE_2D, data); - glTexImage2D(GL_TEXTURE_2D, 0, format, size.x, size.y, 0, GL_RGBA, type, NULL); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, data, 0); + for (const auto format : formats) { + glTexImage2D(GL_TEXTURE_2D, 0, format, size.x, size.y, 0, GL_RGB, GL_BYTE, NULL); + + glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, data, 0); + if (glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE) { + return format; + } + } + throw std::runtime_error("Framebuffer could not be completed!"); }; - configuregdata(gPosition, GL_RGB32F, GL_FLOAT, GL_COLOR_ATTACHMENT0); - configuregdata(gNormal, GL_RGB, GL_FLOAT, GL_COLOR_ATTACHMENT1); - configuregdata(gAlbedoSpec, GL_RGB, GL_UNSIGNED_BYTE, GL_COLOR_ATTACHMENT2); - configuregdata(gIllumination, GL_RGB, GL_FLOAT, GL_COLOR_ATTACHMENT3); + configuregdata(gPosition, {GL_RGB32F}, GL_COLOR_ATTACHMENT0); + configuregdata(gNormal, {GL_RGB8_SNORM, GL_RGB16F}, GL_COLOR_ATTACHMENT1); + configuregdata(gAlbedoSpec, {GL_RGB8}, GL_COLOR_ATTACHMENT2); + configuregdata(gIllumination, {GL_RGB8}, GL_COLOR_ATTACHMENT3); glBindRenderbuffer(GL_RENDERBUFFER, depth); glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, size.x, size.y); glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth); - // finally check if framebuffer is complete - if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) { - throw std::runtime_error("Framebuffer not complete!"); - } glBindFramebuffer(GL_FRAMEBUFFER, output); } |