mirror of https://github.com/axmolengine/axmol.git
49 lines
1.3 KiB
GLSL
49 lines
1.3 KiB
GLSL
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const char* cc3D_Terrain_frag = R"(
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#ifdef GL_ES
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precision mediump float;
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#endif
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uniform vec3 u_color;
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varying vec2 v_texCoord;
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varying vec3 v_normal;
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#ifdef GL_ES
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uniform lowp int u_has_alpha;
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uniform lowp int u_has_light_map;
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#else
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uniform int u_has_alpha;
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uniform int u_has_light_map;
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#endif
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uniform sampler2D u_alphaMap;
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uniform sampler2D u_texture0;
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uniform sampler2D u_texture1;
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uniform sampler2D u_texture2;
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uniform sampler2D u_texture3;
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uniform sampler2D u_lightMap;
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uniform float u_detailSize[4];
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uniform vec3 u_lightDir;
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void main()
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{
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vec4 lightColor;
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if(u_has_light_map<=0)
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{
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lightColor = vec4(1.0,1.0,1.0,1.0);
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}else
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{
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lightColor = texture2D(u_lightMap,v_texCoord);
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}
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float lightFactor = dot(-u_lightDir,v_normal);
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if(u_has_alpha<=0)
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{
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gl_FragColor = texture2D(u_texture0, v_texCoord)*lightColor*lightFactor;
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}else
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{
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vec4 blendFactor =texture2D(u_alphaMap,v_texCoord);
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vec4 color = vec4(0.0,0.0,0.0,0.0);
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color = texture2D(u_texture0, v_texCoord*u_detailSize[0])*blendFactor.r +
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texture2D(u_texture1, v_texCoord*u_detailSize[1])*blendFactor.g + texture2D(u_texture2, v_texCoord*u_detailSize[2])*blendFactor.b
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+ texture2D(u_texture3, v_texCoord*u_detailSize[3])*(1.0 - blendFactor.a);
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gl_FragColor = vec4(color.rgb*lightColor.rgb*lightFactor, 1.0);
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}
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}
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)";
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