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29 lines
653 B
GLSL
29 lines
653 B
GLSL
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layout (location = 0) in vec2 inVertex;
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#ifdef TW_TILE_TEXTURED
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layout (location = 1) in uvec4 inVertexTexCoord;
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#endif
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uniform mat4x2 gPos;
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uniform vec2 gOffset;
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uniform vec2 gScale;
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#ifdef TW_TILE_TEXTURED
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noperspective out vec3 TexCoord;
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#endif
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void main()
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{
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// scale then position vertex
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vec2 VertexPos = (inVertex * gScale) + gOffset;
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gl_Position = vec4(gPos * vec4(VertexPos, 0.0, 1.0), 0.0, 1.0);
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#ifdef TW_TILE_TEXTURED
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// scale the texture coordinates too
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vec2 TexScale = gScale;
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if (float(inVertexTexCoord.w) > 0.0)
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TexScale = gScale.yx;
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TexCoord = vec3(vec2(inVertexTexCoord.xy) * TexScale, float(inVertexTexCoord.z));
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#endif
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}
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