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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,14 @@ | ||
| <renderpath> | ||
| <rendertarget name="depth" sizedivisor="1 1" format="readabledepth" /> | ||
| <command type="clear" depth="1.0" output="depth" /> | ||
| <command type="scenepass" pass="shadow" output="depth" /> | ||
| <command type="clear" color="fog" depthstencil="depth" /> | ||
| <command type="clear" color="fog" depth="1.0" stencil="0" depthstencil="depth" /> | ||
| <command type="scenepass" pass="base" vertexlights="true" metadata="base" depthstencil="depth" /> | ||
| <command type="forwardlights" pass="light" depthstencil="depth" /> | ||
| <command type="scenepass" pass="postopaque" depthstencil="depth" /> | ||
| <command type="scenepass" pass="refract" depthstencil="depth"> | ||
| <texture unit="environment" name="viewport" /> | ||
| </command> | ||
| <command type="scenepass" pass="alpha" vertexlights="true" sort="backtofront" metadata="alpha" depthstencil="depth" /> | ||
| <command type="scenepass" pass="alpha" vertexlights="true" sort="backtofront" metadata="alpha" depthstencil="depth" psdefines="HWDEPTH"> | ||
| <texture unit="depth" name="depth" /> | ||
| </command> | ||
| <command type="scenepass" pass="postalpha" sort="backtofront" depthstencil="depth" /> | ||
| </renderpath> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| <renderpath> | ||
| <rendertarget name="specular" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="albedo" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="normal" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="depth" sizedivisor="1 1" format="lineardepth" /> | ||
| <command type="clear" color="0 0 0 0" depth="1.0" stencil="0" /> | ||
| <command type="clear" color="0 0 0 0" output="albedo" /> | ||
| <command type="clear" color="0 0 0 0" output="specular" /> | ||
| <command type="clear" color="0 0 0 0" output="normal" /> | ||
| <command type="clear" color="0 0 0 0" depth="1.0" output="depth" /> | ||
| <command type="scenepass" pass="base" vertexlights="true" metadata="base" /> | ||
| <command type="scenepass" pass="deferred" marktostencil="true" vertexlights="true" metadata="gbuffer"> | ||
| <output index="0" name="specular" /> | ||
| <output index="1" name="albedo" /> | ||
| <output index="2" name="normal" /> | ||
| <output index="3" name="depth" /> | ||
| </command> | ||
| <command type="lightvolumes" vs="PBRDeferred" ps="PBRDeferred" psdefines="PBRDEFERRED PBR" vsdefines="PBR" output="viewport"> | ||
| <texture unit="specular" name="specular" /> | ||
| <texture unit="albedo" name="albedo" /> | ||
| <texture unit="normal" name="normal" /> | ||
| <texture unit="depth" name="depth" /> | ||
| </command> | ||
| <command type="scenepass" pass="postopaque" /> | ||
| <command type="scenepass" pass="refract"> | ||
| <texture unit="environment" name="viewport" /> | ||
| </command> | ||
| <command type="scenepass" pass="alpha" vertexlights="true" sort="backtofront" metadata="alpha"> | ||
| <texture unit="depth" name="depth" /> | ||
| </command> | ||
| <command type="scenepass" pass="postalpha" sort="backtofront" /> | ||
| </renderpath> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| <renderpath> | ||
| <rendertarget name="specular" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="albedo" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="normal" sizedivisor="1 1" format="rgba16f" /> | ||
| <rendertarget name="depth" sizedivisor="1 1" format="readabledepth" /> | ||
| <command type="clear" color="0 0 0 0" depth="1.0" stencil="0" depthstencil="depth" /> | ||
| <command type="clear" color="0 0 0 0" output="albedo" depthstencil="depth"/> | ||
| <command type="clear" color="0 0 0 0" output="specular" depthstencil="depth" /> | ||
| <command type="clear" color="0 0 0 0" output="normal" depthstencil="depth" /> | ||
| <command type="clear" color="0 0 0 0" depth="1.0" output="depth" depthstencil="depth" /> | ||
| <command type="scenepass" pass="base" vertexlights="true" metadata="base" depthstencil="depth" /> | ||
| <command type="scenepass" pass="deferred" marktostencil="true" vertexlights="true" metadata="gbuffer" depthstencil="depth"> | ||
| <output index="0" name="specular" /> | ||
| <output index="1" name="albedo" /> | ||
| <output index="2" name="normal" /> | ||
| </command> | ||
| <command type="lightvolumes" vs="PBRDeferred" ps="PBRDeferred" psdefines="PBRDEFERRED PBR HWDEPTH" vsdefines="PBR" output="viewport" depthstencil="depth"> | ||
| <texture unit="specular" name="specular" /> | ||
| <texture unit="albedo" name="albedo" /> | ||
| <texture unit="normal" name="normal" /> | ||
| <texture unit="depth" name="depth" /> | ||
| </command> | ||
| <command type="scenepass" pass="postopaque" depthstencil="depth"/> | ||
| <command type="scenepass" pass="refract" depthstencil="depth"> | ||
| <texture unit="environment" name="viewport" /> | ||
| </command> | ||
| <command type="scenepass" pass="alpha" vertexlights="true" sort="backtofront" metadata="alpha" depthstencil="depth" psdefines="HWDEPTH"> | ||
| <texture unit="depth" name="depth" /> | ||
| </command> | ||
| <command type="scenepass" pass="postalpha" sort="backtofront" depthstencil="depth" /> | ||
| </renderpath> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,135 @@ | ||
| #line 20001 | ||
| #ifdef COMPILEPS | ||
| #ifdef PBR | ||
| // Following BRDF methods are based upon research Frostbite EA | ||
| //[Lagrade et al. 2014, "Moving Frostbite to Physically Based Rendering"] | ||
|
|
||
| //Schlick Fresnel | ||
| //specular = the rgb specular color value of the pixel | ||
| //VdotH = the dot product of the camera view direction and the half vector | ||
| vec3 SchlickFresnel(vec3 specular, float VdotH) | ||
| { | ||
| return specular + (vec3(1.0, 1.0, 1.0) - specular) * pow(1.0 - VdotH, 5.0); | ||
| } | ||
|
|
||
| //Schlick Gaussian Fresnel | ||
| //specular = the rgb specular color value of the pixel | ||
| //VdotH = the dot product of the camera view direction and the half vector | ||
| vec3 SchlickGaussianFresnel(in vec3 specular, in float VdotH) | ||
| { | ||
| float sphericalGaussian = pow(2.0, (-5.55473 * VdotH - 6.98316) * VdotH); | ||
| return specular + (vec3(1.0, 1.0, 1.0) - specular) * sphericalGaussian; | ||
| } | ||
|
|
||
| //Get Fresnel | ||
| //specular = the rgb specular color value of the pixel | ||
| //VdotH = the dot product of the camera view direction and the half vector | ||
| vec3 Fresnel(vec3 specular, float VdotH) | ||
| { | ||
| return SchlickFresnel(specular, VdotH); | ||
| } | ||
|
|
||
| // Smith GGX corrected Visibility | ||
| // NdotL = the dot product of the normal and direction to the light | ||
| // NdotV = the dot product of the normal and the camera view direction | ||
| // roughness = the roughness of the pixel | ||
| float SmithGGXSchlickVisibility(float NdotL, float NdotV, float roughness) | ||
| { | ||
| float rough2 = roughness * roughness; | ||
| float lambdaV = NdotL * sqrt((-NdotV * rough2 + NdotV) * NdotV + rough2); | ||
| float lambdaL = NdotV * sqrt((-NdotL * rough2 + NdotL) * NdotL + rough2); | ||
|
|
||
| return 0.5 / (lambdaV + lambdaL); | ||
| } | ||
|
|
||
| // Get Visibility | ||
| // NdotL = the dot product of the normal and direction to the light | ||
| // NdotV = the dot product of the normal and the camera view direction | ||
| // roughness = the roughness of the pixel | ||
| float Visibility(float NdotL, float NdotV, float roughness) | ||
| { | ||
| return SmithGGXSchlickVisibility(NdotL, NdotV, roughness); | ||
| } | ||
|
|
||
| // Blinn Distribution | ||
| // NdotH = the dot product of the normal and the half vector | ||
| // roughness = the roughness of the pixel | ||
| float BlinnPhongDistribution(in float NdotH, in float roughness) | ||
| { | ||
| float specPower = max((2.0 / (roughness * roughness)) - 2.0, 1e-4); // Calculate specular power from roughness | ||
| return pow(clamp(NdotH, 0.0, 1.0), specPower); | ||
| } | ||
|
|
||
| // Beckmann Distribution | ||
| // NdotH = the dot product of the normal and the half vector | ||
| // roughness = the roughness of the pixel | ||
| float BeckmannDistribution(in float NdotH, in float roughness) | ||
| { | ||
| float rough2 = roughness * roughness; | ||
| float roughnessA = 1.0 / (4.0 * rough2 * pow(NdotH, 4.0)); | ||
| float roughnessB = NdotH * NdotH - 1.0; | ||
| float roughnessC = rough2 * NdotH * NdotH; | ||
| return roughnessA * exp(roughnessB / roughnessC); | ||
| } | ||
|
|
||
| // GGX Distribution | ||
| // NdotH = the dot product of the normal and the half vector | ||
| // roughness = the roughness of the pixel | ||
| float GGXDistribution(float NdotH, float roughness) | ||
| { | ||
| float rough2 = roughness * roughness; | ||
| float tmp = (NdotH * rough2 - NdotH) * NdotH + 1.0; | ||
| return rough2 / (tmp * tmp); | ||
| } | ||
|
|
||
| // Get Distribution | ||
| // NdotH = the dot product of the normal and the half vector | ||
| // roughness = the roughness of the pixel | ||
| float Distribution(float NdotH, float roughness) | ||
| { | ||
| return GGXDistribution(NdotH, roughness); | ||
| } | ||
|
|
||
| // Lambertian Diffuse | ||
| // diffuseColor = the rgb color value of the pixel | ||
| // roughness = the roughness of the pixel | ||
| // NdotV = the normal dot with the camera view direction | ||
| // NdotL = the normal dot with the light direction | ||
| // VdotH = the camera view direction dot with the half vector | ||
| vec3 LambertianDiffuse(vec3 diffuseColor, float NdotL) | ||
| { | ||
| return diffuseColor * NdotL; | ||
| } | ||
|
|
||
| // Burley Diffuse | ||
| // diffuseColor = the rgb color value of the pixel | ||
| // roughness = the roughness of the pixel | ||
| // NdotV = the normal dot with the camera view direction | ||
| // NdotL = the normal dot with the light direction | ||
| // VdotH = the camera view direction dot with the half vector | ||
| vec3 BurleyDiffuse(vec3 diffuseColor, float roughness, float NdotV, float NdotL, float VdotH) | ||
| { | ||
| float energyBias = mix(roughness, 0.0, 0.5); | ||
| float energyFactor = mix(roughness, 1.0, 1.0 / 1.51); | ||
| float fd90 = energyBias + 2.0 * VdotH * VdotH * roughness; | ||
| float f0 = 1.0; | ||
| float lightScatter = f0 + (fd90 - f0) * pow(1.0 - NdotL, 5.0); | ||
| float viewScatter = f0 + (fd90 - f0) * pow(1.0 - NdotV, 5.0); | ||
|
|
||
| return diffuseColor * lightScatter * viewScatter * energyFactor; | ||
| } | ||
|
|
||
| //Get Diffuse | ||
| // diffuseColor = the rgb color value of the pixel | ||
| // roughness = the roughness of the pixel | ||
| // NdotV = the normal dot with the camera view direction | ||
| // NdotL = the normal dot with the light direction | ||
| // VdotH = the camera view direction dot with the half vector | ||
| vec3 Diffuse(vec3 diffuseColor, float roughness, float NdotV, float NdotL, float VdotH) | ||
| { | ||
| //return LambertianDiffuse(diffuseColor, NdotL); | ||
| return BurleyDiffuse(diffuseColor, roughness, NdotV, NdotL, VdotH); | ||
| } | ||
|
|
||
| #endif | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| #define M_PI 3.14159265358979323846 | ||
| #define M_EPSILON 0.0001 | ||
|
|
||
| #ifdef PBR | ||
| #define ROUGHNESS_FLOOR 0.003 | ||
| #define METALNESS_FLOOR 0.03 | ||
| #endif |
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