50 lines
791 B
GLSL
50 lines
791 B
GLSL
// Simple Texture Shader
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#type vertex
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#version 430
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layout(location = 0) in vec3 a_Position;
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layout(location = 4) in vec2 a_TexCoord;
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uniform mat4 u_MVP;
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out vec2 v_TexCoord;
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void main()
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{
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vec4 position = u_MVP * vec4(a_Position, 1.0);
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gl_Position = position;
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v_TexCoord = a_TexCoord;
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}
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#type fragment
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#version 430
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layout(location = 0) out vec4 color;
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uniform float u_Scale;
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uniform float u_Res;
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in vec2 v_TexCoord;
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/*void main()
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{
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color = texture(u_Texture, v_TexCoord * 8.0);
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}*/
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float grid(vec2 st, float res)
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{
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vec2 grid = fract(st);
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return step(res, grid.x) * step(res, grid.y);
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}
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void main()
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{
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float scale = u_Scale;
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float resolution = u_Res;
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float x = grid(v_TexCoord * scale, resolution);
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color = vec4(vec3(0.2), 0.5) * (1.0 - x);
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}
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