Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 313 insertions, 0 deletions

diff --git a/KaplaDemo/externalIP/resources/shaders/scene_fs.cpp b/KaplaDemo/externalIP/resources/shaders/scene_fs.cpp
new file mode 100644
index 00000000..d239da41
--- /dev/null
+++ b/KaplaDemo/externalIP/resources/shaders/scene_fs.cpp
@@ -0,0 +1,313 @@
+	uniform sampler3D ttt3D;
+	uniform float extraNoiseScale = 1.0f;
+float noise3D(vec3 p)
+{
+	return texture3D(ttt3D, p).x*2.0f - 1.0f; 
+}
+
+float turbulence(vec3 p, int octaves, float lacunarity, float gain) {
+
+	float freq = 1.0f;
+	float amp = 0.8f;
+	float sum = 0.0f;
+
+	for(int i=0; i<octaves; i++) {
+		sum += abs(noise3D(p*freq))*amp;
+		freq *= lacunarity;
+		amp *= gain;
+	}
+	return sum;
+}
+
+float spike(float c, float w, float x) {
+	return smoothstep(c-w, c, x) * smoothstep(c+w, c, x); 
+}
+
+vec3 myTexture3D(vec3 p)
+{
+
+
+	float noiseScale = 0.1f*extraNoiseScale;
+	float noise = turbulence(p*noiseScale, 3, 3.0f, 0.5f);
+	//noise = turbulence(p*noiseScale + vec3(noise, noise, noise*0.3)*0.01f, 8, 3.0f, 0.5f);
+
+	//noise = spike(0.35f, 0.05f, noise);
+	//noise = noise;
+
+	vec3 base = lerp(vec3(164,148,108)*1.63/255, vec3(178,156,126)*1.73/255, spike(0.5f, 0.3f, turbulence(p*noiseScale*0.7f + vec3(noise*0.5, noise, noise)*0.011f, 2, 2.0f, 0.5f)));
+	//vec3 b2 = lerp(base, vec3(0.0f, 0.0f, 0.0f), noise); 
+	vec3 b2 = lerp(base, vec3(173, 160, 121)*1.73/255, noise); 
+
+
+
+	return b2;
+
+
+
+
+
+}
+
+// scene reflection 
+uniform float reflectionCoeff = 0.0f;
+uniform float specularCoeff = 0.0f;
+
+uniform sampler2DRect reflectionTex;
+
+// Shadow map
+uniform float shadowAmbient = 0.0;
+uniform float hdrScale = 5.0;
+uniform sampler2D texture;
+uniform sampler2DArrayShadow stex;
+uniform sampler2DArrayShadow stex2;
+uniform sampler2DArrayShadow stex3;
+uniform samplerCube skyboxTex;
+uniform vec2 texSize; // x - size, y - 1/size
+uniform vec4 far_d;
+
+// Spot lights
+uniform vec3 spotLightDir;
+uniform vec3 spotLightPos;
+uniform float spotLightCosineDecayBegin;
+uniform float spotLightCosineDecayEnd;
+
+uniform vec3 spotLightDir2;
+uniform vec3 spotLightPos2;
+uniform float spotLightCosineDecayBegin2;
+uniform float spotLightCosineDecayEnd2;
+
+uniform vec3 spotLightDir3;
+uniform vec3 spotLightPos3;
+uniform float spotLightCosineDecayBegin3;
+uniform float spotLightCosineDecayEnd3;
+
+uniform vec3 parallelLightDir;
+uniform float shadowAdd;
+uniform int useTexture;
+uniform int numShadows;
+
+
+uniform float roughnessScale;
+uniform vec3 ambientColor;
+
+uniform sampler2DArray diffuseTexArray;
+uniform sampler2DArray bumpTexArray;
+uniform sampler2DArray specularTexArray;
+uniform sampler2DArray emissiveReflectSpecPowerTexArray;
+
+
+
+float shadowCoeff1()
+{
+	const int index = 0;
+
+	//int index = 3;
+	//
+	//if(gl_FragCoord.z < far_d.x)
+	//	index = 0;
+	//else if(gl_FragCoord.z < far_d.y)
+	//	index = 1;
+	//else if(gl_FragCoord.z < far_d.z)
+	//	index = 2;
+
+	vec4 shadow_coord = gl_TextureMatrix[index]*vec4(gl_TexCoord[1].xyz, 1);
+
+	shadow_coord.w = shadow_coord.z + shadowAdd;
+	// tell glsl in which layer to do the look up
+	shadow_coord.z = float(index);
+
+
+	// Gaussian 3x3 filter
+	//	return shadow2DArray(stex, shadow_coord).x;
+	const float X = 1.0f;
+	float ret = shadow2DArray(stex, shadow_coord).x * 0.25;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( -X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( -X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( -X, X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( 0, -X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( 0, X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex, shadow_coord, ivec2( X, X)).x * 0.0625;	
+	return ret;
+}
+float shadowCoeff2()
+{
+	const int index = 1;
+
+	//int index = 3;
+	//if(gl_FragCoord.z < far_d.x)
+	//	index = 0;
+	//else if(gl_FragCoord.z < far_d.y)
+	//	index = 1;
+	//else if(gl_FragCoord.z < far_d.z)
+	//	index = 2;
+
+	vec4 shadow_coord = gl_TextureMatrix[index]*vec4(gl_TexCoord[1].xyz, 1);
+
+	shadow_coord.w = shadow_coord.z + shadowAdd;
+	shadow_coord.z = float(0);
+	//	return shadow2DArray(stex, shadow_coord).x;
+
+	const float X = 1.0f;
+	float ret = shadow2DArray(stex2, shadow_coord).x * 0.25;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( -X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( -X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( -X, X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( 0, -X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( 0, X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex2, shadow_coord, ivec2( X, X)).x * 0.0625;
+	return ret;
+}
+float shadowCoeff3()
+{
+	const int index = 2;
+
+	//int index = 3;
+	//if(gl_FragCoord.z < far_d.x)
+	//	index = 0;
+	//else if(gl_FragCoord.z < far_d.y)
+	//	index = 1;
+	//else if(gl_FragCoord.z < far_d.z)
+	//	index = 2;
+
+	vec4 shadow_coord = gl_TextureMatrix[index]*vec4(gl_TexCoord[1].xyz, 1);
+
+	shadow_coord.w = shadow_coord.z + shadowAdd;
+	shadow_coord.z = float(0);
+
+	//	return shadow2DArray(stex, shadow_coord).x;
+
+	const float X = 1.0f;
+	float ret = shadow2DArray(stex3, shadow_coord).x * 0.25;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( -X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( -X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( -X, X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( 0, -X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( 0, X)).x * 0.125;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( X, -X)).x * 0.0625;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( X, 0)).x * 0.125;
+	ret += shadow2DArrayOffset(stex3, shadow_coord, ivec2( X, X)).x * 0.0625;
+	return ret;
+}
+
+
+
+uniform float RollOff = 0.5f;
+uniform float fresnelBias = 0.0;
+uniform float fresnelScale = 1.0;
+uniform float fresnelPower = 3.0;   // 5.0 is physically correct
+void main()
+{	
+	//// TODO, expose this as user parameter
+	const float skyLightIntensity = 0.2;
+	const float rimLightIntensity = 0.3;
+
+	vec3 normal = normalize(gl_TexCoord[2].xyz);
+	vec3 t0 = gl_TexCoord[3].xyz;
+	vec3 t1 = gl_TexCoord[4].xyz;
+
+	vec3 diffuseMat;
+	vec3 specularMat;
+	vec3 bump;
+	vec3 emissiveReflectSpecPow;
+
+	// read in material color for diffuse, specular, bump, emmisive
+	if (gl_TexCoord[6].z >= 0.0f) {
+		// 2D texture
+		diffuseMat = texture2DArray(diffuseTexArray, gl_TexCoord[6].xyz).rgb;
+		//specularMat = texture2DArray(specularTexArray, gl_TexCoord[6].xyz).rgb; // TODO Does not seem to work
+		specularMat = vec3(1.0f);
+		bump = texture2DArray(bumpTexArray, gl_TexCoord[6].xyz).xyz;
+		if (dot(bump,bump) < 0.01) bump = vec3(0.5,0.5,1);	
+		emissiveReflectSpecPow = texture2DArray(emissiveReflectSpecPowerTexArray, gl_TexCoord[6].xyz).xyz;
+	
+	} else {
+		// 3D texture
+		diffuseMat = myTexture3D(gl_TexCoord[0].xyz) * vec3(0.5,0.5,0.5);//texture3D(ttt3D, gl_TexCoord[0].xyz);
+		specularMat = vec3(1.0);
+		bump = texture2D(texture, gl_TexCoord[5].xy).xyz;
+		if (dot(bump,bump) < 0.01) bump = vec3(0.5,0.5,1);		
+		emissiveReflectSpecPow = vec3(0.0,0.0,0.0);
+	}
+
+	// apply bump to the normal
+	bump = (bump - vec3(0.5,0.5,0.5)) * 2.0f;
+	bump.xy *= roughnessScale*2;	
+		
+	float sc = 1.0f;
+	normal = normalize(t0*bump.x + t1*bump.y + sc*normal * bump.z);
+
+	//gl_FragColor.xyz = normal*0.5 + vec3(0.5,0.5,0.5);
+	//gl_FragColor.w = 1;
+	//return;
+	vec3 eyeVec = normalize(gl_TexCoord[1].xyz);
+
+	// apply gamma correction for diffuse textures
+	diffuseMat = pow(diffuseMat, 0.45);
+
+	float specularPower = emissiveReflectSpecPow.b*255.0f + 1.0f;
+	
+	// TODO - fix this
+	specularPower = 10.0f;
+
+	float emissive = emissiveReflectSpecPow.r*10.0f;
+	float reflectivity = emissiveReflectSpecPow.b;
+	float fresnel = fresnelBias + fresnelScale*pow(1.0 - max(0.0, dot(normal, eyeVec)), fresnelPower);
+	float specular = 0.0f;
+
+	vec3 skyNormal = reflect(eyeVec, normal);
+	vec3 skyColor = skyLightIntensity * textureCube(skyboxTex, skyNormal).rgb;
+	vec3 ambientSkyColor = diffuseMat * skyColor;
+
+	vec3 diffuseColor = vec3(0.0, 0.0, 0.0);	
+
+	if (numShadows >= 1) {
+		vec3 lightColor = hdrScale * vec3(1.0, 0.9, 0.9);
+		vec3 shadowColor = vec3(0.4, 0.4, 0.9); // colored shadow
+		vec3 lvec = normalize(spotLightDir);
+		float ldn = max(0.0f, dot(normal, lvec));
+		float shadowC = shadowCoeff1();
+		vec3 irradiance = shadowC * ldn * lightColor;
+
+		// diffuse irradiance
+		diffuseColor += diffuseMat * irradiance;
+
+		// add colored shadow
+		diffuseColor += (1.0 - shadowC) * shadowAmbient * shadowColor * diffuseMat;
+
+		vec3 r = reflect(lvec, normal);	
+		specular += pow(max(0.0, dot(r,eyeVec)), specularPower)*shadowC;
+	}
+
+	// add rim light
+	if (numShadows >= 2) {
+		vec3 lightColor = rimLightIntensity * vec3(1.0, 0.9, 0.9);
+		vec3 lvec = normalize(spotLightDir2);
+		float ldn = max(0.0f, dot(normal, lvec));
+		vec3 irradiance = ldn * lightColor;
+
+		// diffuse irradiance
+		diffuseColor += diffuseMat * irradiance;
+	}
+
+	vec3 color = vec3(0.0, 0.0, 0.0);
+
+	color += diffuseColor;
+	color += ambientSkyColor;
+	color += specular*specularMat;
+	color += hdrScale * emissive * diffuseMat;
+	
+	//vec3 reflectColor = diffuseMat * texture2DRect(reflectionTex, gl_FragCoord.xy).rgb;
+	//color = reflectionCoeff * reflectColor + (1.0f - reflectionCoeff) * color;
+	color = (fresnel * skyColor + (1.0 - fresnel) * color) * reflectivity + (1.0 - reflectivity) * color;
+
+	gl_FragColor.rgb = color;
+	gl_FragColor.w = gl_Color.w;
+	
+	float fog = clamp(gl_Fog.scale*(gl_Fog.end+gl_TexCoord[1].z), 0.0, 1.0);
+	vec4 fogCol = gl_Fog.color;
+	gl_FragColor = mix(fogCol, gl_FragColor, fog);
+}
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