79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
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uniform float uvScale = 1.0f;
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uniform sampler2D transTex;
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uniform int transTexSize;
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uniform float iTransTexSize;
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uniform float bumpTextureUVScale;
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//attribute mat4 transformmatrix;
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void main()
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{
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int ti = (int)(gl_MultiTexCoord0.w);
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//int ti = tq;
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int tpr = transTexSize / 4;
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int row = ti / tpr;
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int col = (ti - row*tpr)*4;
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float fx = (col+0.5f)*iTransTexSize;
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float fy = (row+0.5f)*iTransTexSize;
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vec4 r0 = texture2D(transTex, vec2(fx,fy));
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vec4 r1 = texture2D(transTex, vec2(fx+iTransTexSize,fy));
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vec4 r2 = texture2D(transTex, vec2(fx+iTransTexSize*2.0f,fy));
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vec4 r3 = texture2D(transTex, vec2(fx+iTransTexSize*3.0f,fy));
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// vec4 r3 = vec4(0,0,0,1);
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vec3 offset = vec3(r0.w, r1.w, r2.w);
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r0.w = 0.0f;
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r1.w = 0.0f;
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r2.w = 0.0f;
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float material = r3.w;
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r3.w = 1.0f;
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mat4 transformmatrix = mat4(r0,r1,r2,r3);
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mat4 mvp = gl_ModelViewMatrix * transformmatrix;
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mat4 mvpt = gl_ModelViewMatrixInverseTranspose * transformmatrix;
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vec4 t0 = vec4(gl_MultiTexCoord0.xyz, 0.0f);
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vec4 t1 = vec4(cross(gl_Normal.xyz, t0.xyz), 0.0f);
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// mat4 mvp = gl_ModelViewMatrix;
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// mat4 mvpt = gl_ModelViewMatrixInverseTranspose;
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vec4 eyeSpacePos = mvp * gl_Vertex;
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//eyeSpacePos.y += gl_InstanceID * 0.2f;
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//gl_TexCoord[0].xyz = gl_MultiTexCoord0.xyz*uvScale;
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vec3 coord3d = gl_Vertex.xyz + offset;
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gl_TexCoord[0].xyz = (coord3d)*uvScale;
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gl_TexCoord[1] = eyeSpacePos;
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gl_FrontColor = gl_Color;
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gl_Position = gl_ProjectionMatrix*eyeSpacePos;
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gl_TexCoord[2] = mvpt * vec4(gl_Normal.xyz,0.0);
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gl_TexCoord[3] = mvpt * t0;
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gl_TexCoord[4].xyz = mvpt * t1;
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gl_TexCoord[5].xy = vec2(dot(coord3d, t0.xyz), dot(coord3d, t1.xyz))*bumpTextureUVScale*2;
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gl_TexCoord[6].xyz = vec3(gl_MultiTexCoord1.xy, material);
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gl_TexCoord[6].y = 1.0 - gl_TexCoord[6].y;
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float MAX_3D_TEX = 8.0;
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if (gl_TexCoord[6].x >= 5.0f) {
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// 2D Tex
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gl_TexCoord[6].x -= 5.0f;
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gl_TexCoord[6].z = floor(gl_TexCoord[6].z / MAX_3D_TEX);
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} else {
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gl_TexCoord[6].z -= floor(gl_TexCoord[6].z / MAX_3D_TEX)*MAX_3D_TEX;
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gl_TexCoord[6].z -= 100.0f;
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}
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gl_TexCoord[6].w = floor(fract(material / MAX_3D_TEX)*MAX_3D_TEX + 0.5f);
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gl_ClipVertex = vec4(eyeSpacePos.xyz, 1.0f);
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} |