58 lines
1.8 KiB
GLSL
58 lines
1.8 KiB
GLSL
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#version 120
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varying vec4 v_TexCoord;
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uniform sampler2D u_Sampler;
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uniform sampler2D u_NormalMap;
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uniform vec4 u_Color;
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uniform float u_SpriteSize;
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uniform vec2 u_PixelPosition;
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uniform float u_Rotation;
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float VecLen (vec2 Vec)
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{
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return sqrt((Vec.x*Vec.x)+(Vec.y*Vec.y));
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}
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void main () {
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// vec2 center = vec2(1280/2, 720/2);
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// float light = (500 - distance(center, gl_FragCoord.xy)) / 500;
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// gl_FragColor = texture2D(u_sampler, v_texcoord.xy) * vec4(light, light, light, 1);
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// vec4 Color = texture2D(u_Sampler, v_TexCoord.xy);
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// vec4 ColorAvg = vec4((Color.r + Color.g + Color.b) / 3.0f,
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// (Color.r + Color.g + Color.b) / 3.0f,
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// (Color.r + Color.g + Color.b) / 3.0f,
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// Color.a);
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float XDiff = (u_PixelPosition.x-u_SpriteSize) - gl_FragCoord.x;
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float YDiff = (u_PixelPosition.y+u_SpriteSize) - gl_FragCoord.y;
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float DiffLength = sqrt((XDiff*XDiff)+(YDiff*YDiff));
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float LightX = -100.0f;
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float LightY = -100.0f;
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//float Color = 1.0f - (((XDiff)+(YDiff)) / u_SpriteSize);
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float Color = 1.0f - (DiffLength / (u_SpriteSize*2.0f));
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if (Color < 0.1f) Color = 0.1f;
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vec4 LightingColor = vec4(Color, Color, Color, 1.0f);
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vec4 Texture0 = texture2D(u_Sampler, v_TexCoord.xy);
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vec4 Texture1 = texture2D(u_NormalMap, v_TexCoord.xy);
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vec3 Normal = (2.0f*Texture1.xyz)-1.0f;
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vec3 LightPos;
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LightPos.x = (sin(radians(u_Rotation))*-u_SpriteSize)+(cos(radians(u_Rotation))*-u_SpriteSize);
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LightPos.y = (sin(radians(u_Rotation))*-u_SpriteSize)+(cos(radians(u_Rotation))*-u_SpriteSize);
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LightPos.z = 0.0f;
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float Dot = dot(Normal.xyz, LightPos);
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//LightingColor = vec4(vec3(1.0f-(Dot/u_SpriteSize)), 1.0f);
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LightingColor = vec4(1.0f);
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gl_FragColor = (Texture0 * u_Color) * (LightingColor);
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//gl_FragColor = vec4(Texture0 * vec4(0.0f, 0.0f, 1.0f, 1.0f));
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}
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