Tleety
70 lines
1.7 KiB
GLSL
Executable File
70 lines
1.7 KiB
GLSL
Executable File
#version 430
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layout (binding=0) uniform sampler2D DiffuseTexture;
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layout (binding=1) uniform sampler2D ShadowTexture;
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layout (binding=2) uniform sampler2D NormalMapTexture;
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layout (binding=3) uniform sampler2D SpecularMapTexture;
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uniform vec3 SunDirection_cameraspace;
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uniform mat4 V;
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in VertexData
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{
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vec3 Position;
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vec3 Normal;
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vec2 TextureCoord;
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vec4 ShadowCoord;
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vec3 Tangent;
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vec3 BiTangent;
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} Input;
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out vec4 frag_Diffuse;
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out vec4 frag_Position;
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out vec4 frag_Normal;
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out vec4 frag_Specular;
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float Shadow(vec4 ShadowCoord, vec3 normal)
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{
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return 1.0;
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if (Input.ShadowCoord.x < 0.0 || Input.ShadowCoord.x > 1.0 || Input.ShadowCoord.y < 0.0 || Input.ShadowCoord.y > 1.0)
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return 0.9;
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//Variable bias
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vec3 n = normalize(normal);
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vec3 l = normalize(SunDirection_cameraspace);
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float cosTheta = clamp(dot(n, l), 0.0, 1.0);
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float bias = tan(acos(cosTheta));
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bias = clamp(bias, 0.0, 0.00003);
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//Fixed bias
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bias = 0;
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if( texture(ShadowTexture, Input.ShadowCoord.xy).z < ShadowCoord.z + bias)
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{
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return 0.6;
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}
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else
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{
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return 1.0;
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}
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}
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void main()
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{
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// G-buffer Position
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frag_Position = vec4(Input.Position.xyz, 1.0);
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// G-buffer Normal
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mat3 TBN = mat3(Input.Tangent, Input.BiTangent, Input.Normal);
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frag_Normal = normalize(vec4(TBN * vec3(texture(NormalMapTexture, Input.TextureCoord)), 0.0));
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//frag_Diffuse = normalize(vec4(TBN * vec3(texture(NormalMapTexture, Input.TextureCoord)), 0.0));
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//frag_Normal = vec4(Input.Normal, 0.0);
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// Diffuse Texture
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//frag_Diffuse = tex;
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frag_Diffuse = texture(DiffuseTexture, Input.TextureCoord) * Shadow(Input.ShadowCoord, vec3(frag_Normal));
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//G-buffer Specular
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frag_Specular = texture(SpecularMapTexture, Input.TextureCoord);
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} |