mirror of
https://github.com/scratchfoundation/bgfx.git
synced 2024-12-01 11:56:58 -05:00
57 lines
1.4 KiB
Text
57 lines
1.4 KiB
Text
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struct v2f_vertex_lit {
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vec2 uv;
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vec4 diff;
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vec4 spec;
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};
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struct v2f_img {
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vec4 pos;
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vec2 uv;
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};
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struct appdata_img {
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vec4 vertex;
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vec2 texcoord;
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};
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struct v2f {
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vec4 pos;
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vec4 uv[4];
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};
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uniform vec4 _MainTex_TexelSize;
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vec2 MultiplyUV( in mat4 mat, in vec2 inUV );
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v2f vert( in appdata_img v );
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vec2 MultiplyUV( in mat4 mat, in vec2 inUV ) {
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vec4 temp;
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temp = vec4( inUV.x , inUV.y , 0.000000, 0.000000);
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temp = ( mat * temp );
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return temp.xy ;
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}
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v2f vert( in appdata_img v ) {
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v2f o;
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vec4 uv;
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float offX;
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float offY;
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o.pos = ( gl_ModelViewProjectionMatrix * v.vertex );
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uv.xy = MultiplyUV( gl_TextureMatrix[0], v.texcoord);
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uv.zw = vec2( 0.000000);
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offX = _MainTex_TexelSize.x ;
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offY = _MainTex_TexelSize.y ;
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o.uv[ 0 ] = (uv + vec4( ( -offX ), ( -offY ), 0.000000, 1.00000));
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o.uv[ 1 ] = (uv + vec4( offX, ( -offY ), 0.000000, 1.00000));
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o.uv[ 2 ] = (uv + vec4( offX, offY, 0.000000, 1.00000));
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o.uv[ 3 ] = (uv + vec4( ( -offX ), offY, 0.000000, 1.00000));
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return o;
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}
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void main() {
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v2f xl_retval;
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appdata_img xlt_v;
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xlt_v.vertex = vec4( gl_Vertex);
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xlt_v.texcoord = vec2( gl_MultiTexCoord0);
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xl_retval = vert( xlt_v);
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gl_Position = vec4( xl_retval.pos);
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gl_TexCoord[0] = vec4( xl_retval.uv[0]);
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gl_TexCoord[1] = vec4( xl_retval.uv[1]);
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gl_TexCoord[2] = vec4( xl_retval.uv[2]);
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gl_TexCoord[3] = vec4( xl_retval.uv[3]);
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}
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