terrainV.glsl
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:1k
- /**
- * @file terrainV.glsl
- *
- * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
- * $License$
- */
- vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
- vec4 texgen_object(vec4 vpos, vec4 tc, mat4 mat, vec4 tp0, vec4 tp1)
- {
- vec4 tcoord;
-
- tcoord.x = dot(vpos, tp0);
- tcoord.y = dot(vpos, tp1);
- tcoord.z = tc.z;
- tcoord.w = tc.w;
-
- tcoord = mat * tcoord;
-
- return tcoord;
- }
- void main()
- {
- //transform vertex
- gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
-
- vec4 pos = gl_ModelViewMatrix * gl_Vertex;
- vec3 norm = normalize(gl_NormalMatrix * gl_Normal);
-
- vec4 color = calcLighting(pos.xyz, norm, vec4(1,1,1,1), gl_Color);
-
- gl_FrontColor = color;
-
- gl_TexCoord[0] = texgen_object(gl_Vertex,gl_MultiTexCoord0,gl_TextureMatrix[0],gl_ObjectPlaneS[0],gl_ObjectPlaneT[0]);
- gl_TexCoord[1] = gl_TextureMatrix[1]*gl_MultiTexCoord1;
- gl_TexCoord[2] = texgen_object(gl_Vertex,gl_MultiTexCoord2,gl_TextureMatrix[2],gl_ObjectPlaneS[2],gl_ObjectPlaneT[2]);
- gl_TexCoord[3] = gl_TextureMatrix[3]*gl_MultiTexCoord3;
- }