1 files changed, 202 insertions, 0 deletions
diff --git a/Studio/Content/Material Library/thin_glass_refractive.shader b/Studio/Content/Material Library/thin_glass_refractive.shader
new file mode 100644
index 0000000..16cf172
--- /dev/null
+++ b/Studio/Content/Material Library/thin_glass_refractive.shader
@@ -0,0 +1,202 @@
+<Material name="thin_glass_refractive" version="1.0">
+    <MetaData >
+        <Property formalName="Environment Map" name="uEnvironmentTexture" description="Environment texture for the material" type="Texture" filter="linear" minfilter="linearMipmapLinear" clamp="repeat" usage="environment" default="./maps/materials/spherical_checker.png" category="Material"/>
+        <Property formalName="Enable Environment" name="uEnvironmentMappingEnabled" description="Enable environment mapping" type="Boolean" default="True" category="Material"/>
+        <Property formalName="Baked Shadow Map" name="uBakedShadowTexture" description="Baked shadow texture for the material" type="Texture" filter="linear" minfilter="linearMipmapLinear" clamp="repeat" usage="shadow" default="./maps/materials/shadow.png" category="Material"/>
+        <Property formalName="Shadow Mapping" name="uShadowMappingEnabled" description="Enable shadow mapping" type="Boolean" default="False" category="Material"/>
+        <Property formalName="Fresnel Power" name="uFresnelPower" description="Fresnel power of the material" type="Float" default="1.0" category="Material"/>
+        <Property formalName="Roughness" name="roughness" type="Float" min="0.000000" max="1.000000" default="0.000000" description="Roughness of the material.\n0 = fully specular\n1 = fully diffuse" category="Material"/>
+        <Property formalName="Reflectivity" name="reflectivity_amount" type="Float" min="0.000000" max="1.000000" default="1.000000" description="Reflectivity factor" category="Material"/>
+        <Property formalName="Glass ior" name="glass_ior" type="Float" default="1.100000" description="Index of refraction of the material" category="Material"/>
+        <Property formalName="Glass Color" name="glass_color" type="Color" default="0.9 0.9 0.9" description="Color of the material" category="Material"/>
+    </MetaData>
+    <Shaders type="GLSL" version="330">
+    <Shader>
+    <Shared>    </Shared>
+<VertexShader>
+        </VertexShader>
+        <FragmentShader>
+
+// add enum defines
+#define scatter_reflect 0
+#define scatter_transmit 1
+#define scatter_reflect_transmit 2
+
+#define QT3DS_ENABLE_UV0 1
+#define QT3DS_ENABLE_WORLD_POSITION 1
+#define QT3DS_ENABLE_TEXTAN 1
+#define QT3DS_ENABLE_BINORMAL 0
+
+#include "vertexFragmentBase.glsllib"
+
+// set shader output
+out vec4 fragColor;
+
+// add structure defines
+struct layer_result
+{
+  vec4 base;
+  vec4 layer;
+  mat3 tanFrame;
+};
+
+
+// temporary declarations
+vec3 ftmp0;
+ vec4 tmpShadowTerm;
+
+layer_result layers[1];
+
+#include "SSAOCustomMaterial.glsllib"
+#include "sampleLight.glsllib"
+#include "sampleProbe.glsllib"
+#include "sampleArea.glsllib"
+#include "square.glsllib"
+#include "calculateRoughness.glsllib"
+#include "evalBakedShadowMap.glsllib"
+#include "evalEnvironmentMap.glsllib"
+#include "luminance.glsllib"
+#include "microfacetBSDF.glsllib"
+#include "physGlossyBSDF.glsllib"
+#include "simpleGlossyBSDF.glsllib"
+#include "abbeNumberIOR.glsllib"
+#include "fresnelLayer.glsllib"
+#include "refraction.glsllib"
+
+uniform sampler2D refractiveTexture;
+
+bool evalTwoSided()
+{
+  return( false );
+}
+
+vec3 computeFrontMaterialEmissive()
+{
+  return( vec3( 0, 0, 0 ) );
+}
+
+void computeFrontLayerColor( in vec3 normal, in vec3 lightDir, in vec3 viewDir, in vec3 lightDiffuse, in vec3 lightSpecular, in float materialIOR, float aoFactor )
+{
+#if QT3DS_ENABLE_CG_LIGHTING
+  layers[0].base += tmpShadowTerm * microfacetBSDF( layers[0].tanFrame, lightDir, viewDir, lightSpecular, materialIOR, roughness, roughness, scatter_reflect_transmit );
+
+#endif
+}
+
+void computeFrontAreaColor( in int lightIdx, in vec4 lightDiffuse, in vec4 lightSpecular )
+{
+#if QT3DS_ENABLE_CG_LIGHTING
+  layers[0].base += tmpShadowTerm * lightSpecular * sampleAreaGlossy( layers[0].tanFrame, varWorldPos, lightIdx, viewDir, roughness, roughness );
+
+#endif
+}
+
+void computeFrontLayerEnvironment( in vec3 normal, in vec3 viewDir, float aoFactor )
+{
+#if !QT3DS_ENABLE_LIGHT_PROBE
+  layers[0].base += tmpShadowTerm * microfacetSampledBSDF( layers[0].tanFrame, viewDir, roughness, roughness, scatter_reflect_transmit );
+
+#else
+  layers[0].base += tmpShadowTerm * sampleGlossyAniso( layers[0].tanFrame, viewDir, roughness, roughness );
+
+#endif
+}
+
+vec3 computeBackMaterialEmissive()
+{
+  return( vec3(0, 0, 0) );
+}
+
+void computeBackLayerColor( in vec3 normal, in vec3 lightDir, in vec3 viewDir, in vec3 lightDiffuse, in vec3 lightSpecular, in float materialIOR, float aoFactor )
+{
+#if QT3DS_ENABLE_CG_LIGHTING
+  layers[0].base += vec4( 0.0, 0.0, 0.0, 1.0 );
+  layers[0].layer += vec4( 0.0, 0.0, 0.0, 1.0 );
+#endif
+}
+
+void computeBackAreaColor( in int lightIdx, in vec4 lightDiffuse, in vec4 lightSpecular )
+{
+#if QT3DS_ENABLE_CG_LIGHTING
+  layers[0].base += vec4( 0.0, 0.0, 0.0, 1.0 );
+  layers[0].layer += vec4( 0.0, 0.0, 0.0, 1.0 );
+#endif
+}
+
+void computeBackLayerEnvironment( in vec3 normal, in vec3 viewDir, float aoFactor )
+{
+#if !QT3DS_ENABLE_LIGHT_PROBE
+  layers[0].base += vec4( 0.0, 0.0, 0.0, 1.0 );
+  layers[0].layer += vec4( 0.0, 0.0, 0.0, 1.0 );
+#else
+  layers[0].base += vec4( 0.0, 0.0, 0.0, 1.0 );
+  layers[0].layer += vec4( 0.0, 0.0, 0.0, 1.0 );
+#endif
+}
+
+float computeIOR()
+{
+  return( false ? 1.0 : luminance( vec3( abbeNumberIOR(glass_ior, 0.000000 ) ) ) );
+}
+
+float evalCutout()
+{
+  return( 1.000000 );
+}
+
+vec3 computeNormal()
+{
+  return( normal );
+}
+
+void computeTemporaries()
+{
+     ftmp0 = vec3( reflectivity_amount );
+     tmpShadowTerm = evalBakedShadowMap( texCoord0 );
+}
+
+vec4 computeLayerWeights( in float alpha )
+{
+  vec4 color;
+  color = layers[0].base * vec4( ftmp0, 1.0);
+  return color;
+}
+
+
+void initializeLayerVariables(void)
+{
+  // clear layers
+  layers[0].base = vec4(0.0, 0.0, 0.0, 1.0);
+  layers[0].layer = vec4(0.0, 0.0, 0.0, 1.0);
+  layers[0].tanFrame = orthoNormalize( tangentFrame( normal, varWorldPos ) );
+}
+
+vec4 computeGlass(in vec3 normal, in float materialIOR, in float alpha, in vec4 color)
+{
+  vec4 rgba = color;
+  float ratio = simpleFresnel( normal, materialIOR, uFresnelPower );
+  vec3 absorb_color = ( log( glass_color.rgb )/-1.000000 );
+  // prevent log(0) -> inf number issue
+  if ( isinf(absorb_color.r) ) absorb_color.r = 1.0;
+  if ( isinf(absorb_color.g) ) absorb_color.g = 1.0;
+  if ( isinf(absorb_color.b) ) absorb_color.b = 1.0;
+  rgba.rgb *= (vec3(1.0) - absorb_color);
+  vec3 refractColor = refraction( refractiveTexture, materialIOR ) * (vec3(1.0) - absorb_color);
+  rgba = vec4(mix(refractColor, rgba.rgb, ratio), 1.0);
+  return rgba;
+}
+
+        </FragmentShader>
+    </Shader>
+    </Shaders>
+<Passes >
+        <ShaderKey value="20"/>
+        <LayerKey count="1"/>
+    <Buffer name="temp_buffer" format="source" filter="linear" wrap="clamp" size="1.0" lifetime="scene"/>
+    <Pass >
+        <BufferBlit dest="temp_buffer"/>
+        <BufferInput value="temp_buffer" param="refractiveTexture"/>
+        <Blending source="SrcAlpha" dest="OneMinusSrcAlpha"/>
+    </Pass>
+</Passes>
+</Material>