31 lines
953 B
GLSL
31 lines
953 B
GLSL
#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_min_bright;
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uniform lowp vec3 uni_min_albedo;
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varying lowp vec3 vary_color;
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varying lowp vec3 vary_normal;
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varying mediump vec2 vary_uv;
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varying lowp vec3 vary_object_space_light;
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varying lowp vec3 vary_object_space_sky;
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void main (void) {
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lowp vec3 normal = normalize (vary_normal);
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lowp vec3 albedo = max (uni_min_albedo, texture2D (uni_texture, vary_uv).rgb);
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lowp vec3 sky_color = pow (vec3 (89.0, 125.0, 206.0) / vec3 (255.0), vec3 (2.0));
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lowp float sun_factor = dot (normal, vary_object_space_light);
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lowp float sky_factor = dot (normal, vary_object_space_sky);
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lowp vec3 sun = max (sun_factor, 0.0) * (vec3 (1.0) - sky_color);
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lowp vec3 sky = (sky_factor * 0.5 + 0.5) * sky_color;
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lowp vec3 diffuse_color = max (uni_min_bright, (sun + sky));
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gl_FragColor = vec4 (albedo * sqrt (vary_color * diffuse_color), 1.0);
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}
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