1 files changed, 169 insertions, 0 deletions
diff --git a/shaders/humus-dynamicbranching/10.shader_test b/shaders/humus-dynamicbranching/10.shader_test
new file mode 100644
index 0000000..968b9f1
--- /dev/null
+++ b/shaders/humus-dynamicbranching/10.shader_test
@@ -0,0 +1,169 @@
+[require]
+GLSL >= 1.10
+
+[fragment shader]
+#version 130
+#define saturate(x) clamp(x,0.0,1.0)
+#define lerp mix
+#define LIGHT_COUNT 3
+#line 43
+uniform sampler2D Base;
+uniform sampler2D Bump;
+uniform samplerCube ShadowMap;
+
+uniform vec3 lightColor[LIGHT_COUNT];
+uniform vec2 plxCoeffs;
+
+uniform bool hasParallax;
+
+varying vec3 lVec[LIGHT_COUNT];
+varying vec2 texCoord;
+varying vec3 vVec;
+#ifdef SHADOWS
+varying vec3 shadowVec[LIGHT_COUNT];
+#endif
+
+void main(){
+//	float atten[LIGHT_COUNT];
+	vec3 atten;
+	for (int i = 0; i < LIGHT_COUNT; i++){
+		atten[i] = 1.0 - dot(lVec[i], lVec[i]);
+	}
+	atten = max(atten, 0.0);
+
+
+	vec3 viewVec = normalize(vVec);
+
+	vec2 plxTexCoord = texCoord;
+	if (hasParallax){
+		float height = texture2D(Bump, texCoord).w;
+		float offset = height * plxCoeffs.x + plxCoeffs.y;
+		plxTexCoord += offset * viewVec.xy;
+	}
+
+	vec3 base = texture2D(Base, plxTexCoord).rgb;
+	vec3 lighting = 0.1 * base;
+
+#ifdef BRANCHING
+	if (dot(atten, atten) > 0.0)
+#endif
+	{
+
+		vec3 bump = texture2D(Bump, plxTexCoord).xyz * 2.0 - 1.0;
+		bump = normalize(bump);
+		vec3 reflVec = reflect(-viewVec, bump);
+
+		for (int i = 0; i < LIGHT_COUNT; i++){
+#ifndef BRANCHING
+			atten[i] *= float(lVec[i].z > 0.0);
+#else
+			if (atten[i] > 0.0)
+			if (lVec[i].z > 0.0)
+#endif
+			{
+
+#ifdef SHADOWS
+#  ifndef BRANCHING
+				atten[i] *= float(length(shadowVec[i]) < textureCube(ShadowMap, shadowVec[i])[i]);
+#  else
+				if (length(shadowVec[i]) < textureCube(ShadowMap, shadowVec[i])[i])
+#  endif
+#endif
+				{
+					vec3 lightVec = normalize(lVec[i]);
+
+					float diffuse = saturate(dot(lightVec, bump));
+					float specular = pow(saturate(dot(reflVec, lightVec)), 16.0);
+
+					lighting += atten[i] * lightColor[i] * (diffuse * base + 0.6 * specular);
+				}
+			}
+		}
+	}
+
+	gl_FragColor.rgb = lighting;
+}
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+[vertex shader]
+#version 130
+#define saturate(x) clamp(x,0.0,1.0)
+#define lerp mix
+#define LIGHT_COUNT 3
+#line 2
+uniform vec3 camPos;
+uniform vec3 lightPos[LIGHT_COUNT];
+uniform float invRadius[LIGHT_COUNT];
+
+attribute vec2 textureCoord;
+attribute vec3 tangent;
+attribute vec3 binormal;
+attribute vec3 normal;
+
+varying vec3 lVec[LIGHT_COUNT];
+varying vec2 texCoord;
+varying vec3 vVec;
+#ifdef SHADOWS
+varying vec3 shadowVec[LIGHT_COUNT];
+#endif
+
+void main(){
+	gl_Position = ftransform();
+
+	texCoord = textureCoord;
+
+	for (int i = 0; i < LIGHT_COUNT; i++){
+		vec3 lightVec = invRadius[i] * (lightPos[i] - gl_Vertex.xyz);
+
+#ifdef SHADOWS
+		shadowVec[i] = -lightVec;
+#endif
+		lVec[i].x = dot(lightVec, tangent);
+		lVec[i].y = dot(lightVec, binormal);
+		lVec[i].z = dot(lightVec, normal);
+	}
+
+	vec3 viewVec = camPos - gl_Vertex.xyz;
+	vVec.x = dot(viewVec, tangent);
+	vVec.y = dot(viewVec, binormal);
+	vVec.z = dot(viewVec, normal);
+}
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