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Hook up gl_ssao

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This commit is contained in:
Magnus Norddahl 2020-01-03 18:34:43 +01:00
parent 6ba04e7a09
commit 13a7b7d4b2
6 changed files with 40 additions and 3 deletions
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3
source/common/rendering/gl/renderer/gl_renderbuffers.cpp
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@ -128,6 +128,7 @@ void FGLRenderBuffers::Setup(int width, int height, int sceneWidth, int sceneHei
I_FatalError("Requested invalid render buffer sizes: screen = %dx%d", width, height);
int samples = clamp((int)gl_multisample, 0, mMaxSamples);
bool needsSceneTextures = (gl_ssao != 0);
GLint activeTex;
GLint textureBinding;
@ -139,7 +140,7 @@ void FGLRenderBuffers::Setup(int width, int height, int sceneWidth, int sceneHei
CreatePipeline(width, height);
if (width != mWidth || height != mHeight || mSamples != samples)
CreateScene(width, height, samples, false);
CreateScene(width, height, samples, needsSceneTextures);
mWidth = width;
mHeight = height;

26
source/common/rendering/gl/system/gl_framebuffer.cpp
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@ -65,6 +65,7 @@ EXTERN_CVAR (Bool, vid_vsync)
EXTERN_CVAR(Bool, r_drawvoxels)
EXTERN_CVAR(Int, gl_tonemap)
EXTERN_CVAR(Bool, gl_texture_usehires)
EXTERN_CVAR(Int, gl_ssao)
void gl_LoadExtensions();
void gl_PrintStartupLog();
@ -431,6 +432,21 @@ void OpenGLFrameBuffer::PostProcessScene(int fixedcm, const std::function<void()
void videoShowFrame(int32_t w)
{
static GLenum buffers[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2 };
if (gl_ssao)
{
glDrawBuffers(1, buffers);
OpenGLRenderer::GLRenderer->AmbientOccludeScene(GLInterface.GetMatrix(Matrix_Projection).get()[5]);
glViewport(screen->mSceneViewport.left, screen->mSceneViewport.top, screen->mSceneViewport.width, screen->mSceneViewport.height);
OpenGLRenderer::GLRenderer->mBuffers->BindSceneFB(true);
glDrawBuffers(3, buffers);
// To do: the translucent part of the scene should be drawn here
glDrawBuffers(1, buffers);
}
OpenGLRenderer::GLRenderer->mBuffers->BlitSceneToTexture(); // Copy the resulting scene to the current post process texture
screen->PostProcessScene(0, []() {
GLInterface.Draw2D(&twodpsp); // draws the weapon sprites
@ -438,7 +454,15 @@ void videoShowFrame(int32_t w)
screen->Update();
// After finishing the frame, reset everything for the next frame. This needs to be done better.
screen->BeginFrame();
OpenGLRenderer::GLRenderer->mBuffers->BindSceneFB(false);
if (gl_ssao)
{
OpenGLRenderer::GLRenderer->mBuffers->BindSceneFB(true);
glDrawBuffers(3, buffers);
}
else
{
OpenGLRenderer::GLRenderer->mBuffers->BindSceneFB(false);
}
twodpsp.Clear();
twodgen.Clear();
}