Implement ambient lighting in the Cook-Torrance shader

[libs/gl.git] / source / materials / pbrmaterial.h

diff --git a/source/materials/pbrmaterial.h b/source/materials/pbrmaterial.h
index 3e9b26ade8d525aff7b08c4d399d34f36e5d8f0c..7c0d545936db21b5464c20bf60512f3566b94ae2 100644 (file)
--- a/source/materials/pbrmaterial.h
+++ b/source/materials/pbrmaterial.h
@@ -6,6 +6,8 @@
 namespace Msp {
 namespace GL {
 
+class Texture2D;
+
 class PbrMaterial: public Material
 {
 public:
@@ -29,12 +31,16 @@ private:
        Property<float> roughness;
        Property<float> occlusion;
        Property<Color> emission;
+       const Texture2D &fresnel_lookup;
 
        static const Tag texture_tags[];
 
 public:
        PbrMaterial();
 
+private:
+       static const Texture2D &get_or_create_fresnel_lookup();
+
 protected:
        virtual void fill_program_info(std::string &, std::map<std::string, int> &) const;