28 lines
861 B
Plaintext
28 lines
861 B
Plaintext
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#define lowp
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#define mediump
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#define highp
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#line 0
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uniform lowp sampler2D uni_texture;
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uniform lowp vec3 uni_albedo;
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uniform lowp vec3 uni_object_space_light;
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uniform lowp vec3 uni_min_bright;
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uniform lowp vec3 uni_min_albedo;
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//varying lowp vec4 vary_color;
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varying lowp vec3 vary_normal;
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varying mediump vec2 vary_uv;
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void main (void) {
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lowp vec3 normal = normalize (vary_normal);
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lowp vec3 albedo = uni_albedo * max (uni_min_albedo, texture2D (uni_texture, vary_uv).rgb);
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//lowp vec3 albedo = vec3 (vary_uv, 0.0);
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lowp float diffuse_factor = dot (normal, uni_object_space_light);
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lowp vec3 sun = max (diffuse_factor, 0.0) * vec3 (0.95, 0.9, 0.85);
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lowp vec3 sky = (diffuse_factor * 0.45 + 0.55) * vec3 (0.05, 0.1, 0.15);
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lowp vec3 diffuse_color = albedo * max (uni_min_bright, (sun + sky));
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gl_FragColor = vec4 (sqrt (diffuse_color), 1.0);
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}
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