public static void BlurMomentsMap(int momentTexture, int framebufferTarget, int framebufferTargetTexture)
{
GL.UseProgram(GetProgramId());
GL.BindVertexArray(PrimitiveQuad.GetVAOId());
// x axis:
GL.BindFramebuffer(FramebufferTarget.Framebuffer, _fbBlur1);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Uniform1(GetAxisId(), 0);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, momentTexture);
GL.Uniform1(GetTextureInputId(), 0);
GL.DrawArrays(PrimitiveType.Triangles, 0, PrimitiveQuad.GetPointCount());
GL.BindTexture(TextureTarget.Texture2D, 0);
// y axis:
GL.BindFramebuffer(FramebufferTarget.Framebuffer, framebufferTarget);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
GL.Uniform1(GetAxisId(), 1);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, _fbBlur1Texture);
GL.Uniform1(GetTextureInputId(), 0);
GL.DrawArrays(PrimitiveType.Triangles, 0, PrimitiveQuad.GetPointCount());
GL.BindTexture(TextureTarget.Texture2D, 0);
// done!
GL.BindVertexArray(0);
GL.UseProgram(0);
GL.BindTexture(TextureTarget.Texture2D, framebufferTargetTexture);
GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, 0);
}
public static void RenderMomentsMap(int framebufferMomentId, int downsampledShadowMap, int shadowMapSize, float zNear, float zFar, bool isSun)
{
GL.Viewport(0, 0, shadowMapSize, shadowMapSize);
HelperGeneral.SwitchToBufferAndClear(framebufferMomentId);
GL.UseProgram(GetProgramId());
GL.Uniform2(_uniformNearFar, zNear, zFar);
GL.Uniform1(_uniformIsSun, isSun ? 1 : 0);
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, downsampledShadowMap);
GL.Uniform1(_uniformTextureDepthMS, 0);
GL.BindVertexArray(PrimitiveQuad.GetVAOId());
GL.DrawArrays(PrimitiveType.Triangles, 0, PrimitiveQuad.GetPointCount());
GL.BindVertexArray(0);
GL.UseProgram(0);
GL.BindTexture(TextureTarget.Texture2D, 0);
}