7e15234145
really dug into example to learn and just _leaving the example better then I found it_ but cleaning up some unused values and swizzle redudency in shaders. Tested on desktop and android
44 lines
No EOL
1.3 KiB
GLSL
44 lines
No EOL
1.3 KiB
GLSL
#version 450
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#extension GL_ARB_separate_shader_objects : enable
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#extension GL_ARB_shading_language_420pack : enable
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layout (binding = 1) uniform sampler2D sColorMap;
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layout (binding = 2) uniform sampler2D sNormalHeightMap;
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#define lightRadius 45.0
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layout (location = 0) in vec2 inUV;
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layout (location = 1) in vec3 inLightVec;
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layout (location = 2) in vec3 inLightVecB;
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layout (location = 3) in vec3 inLightDir;
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layout (location = 4) in vec3 inViewVec;
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layout (location = 0) out vec4 outFragColor;
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void main(void)
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{
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vec3 specularColor = vec3(0.85, 0.5, 0.0);
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float invRadius = 1.0/lightRadius;
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float ambient = 0.25;
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vec3 rgb, normal;
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rgb = texture(sColorMap, inUV).rgb;
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normal = normalize((texture(sNormalHeightMap, inUV).rgb - 0.5) * 2.0);
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float distSqr = dot(inLightVecB, inLightVecB);
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vec3 lVec = inLightVecB * inversesqrt(distSqr);
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float atten = max(clamp(1.0 - invRadius * sqrt(distSqr), 0.0, 1.0), ambient);
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float diffuse = clamp(dot(lVec, normal), 0.0, 1.0);
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vec3 light = normalize(-inLightVec);
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vec3 view = normalize(inViewVec);
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vec3 reflectDir = reflect(-light, normal);
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float specular = pow(max(dot(view, reflectDir), 0.0), 4.0);
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outFragColor = vec4((rgb * atten + (diffuse * rgb + 0.5 * specular * specularColor.rgb)) * atten, 1.0);
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} |