1 files changed, 31 insertions, 0 deletions
diff --git a/engine/src/core-data/Common/MatDefs/Hdr/ToneMap.frag b/engine/src/core-data/Common/MatDefs/Hdr/ToneMap.frag
new file mode 100644
index 0000000..f221030
--- /dev/null
+++ b/engine/src/core-data/Common/MatDefs/Hdr/ToneMap.frag
@@ -0,0 +1,31 @@
+#import "Common/ShaderLib/Hdr.glsllib"
+
+varying vec2 texCoord;
+
+uniform sampler2D m_Texture;
+uniform sampler2D m_Lum;
+uniform sampler2D m_Lum2;
+
+uniform float m_A;
+uniform float m_White;
+uniform float m_BlendFactor;
+uniform float m_Gamma;
+
+void main() {
+    float avgLumA = HDR_DecodeLum( texture2D(m_Lum, vec2(0.0)) );
+    float avgLumB = HDR_DecodeLum( texture2D(m_Lum2, vec2(0.0)) );
+    float lerpedLum = mix(avgLumA, avgLumB, m_BlendFactor);
+
+    vec4 color = texture2D(m_Texture, texCoord);
+    vec3 c1 = HDR_ToneMap(color.rgb, lerpedLum, m_A, m_White);
+    //vec3 c2 = HDR_ToneMap2(color.rgb, lerpedLum, m_A * vec2(0.25), m_White);
+
+    //float l1 = HDR_GetLuminance(c1);
+    //float l2 = HDR_GetLuminance(c2);
+
+    //vec3 final = mix(c2, c1, clamp(l1, 0.0, 1.0));
+
+    //tonedColor = pow(tonedColor, vec3(m_Gamma));
+    gl_FragColor = vec4(c1, color.a);
+}
+