43 lines
868 B
Scala
43 lines
868 B
Scala
$input v_texcoord0
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/*
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* Copyright 2018 Attila Kocsis. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#include "../common/common.sh"
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SAMPLER2D(s_color, 0);
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SAMPLER2D(s_normal, 1);
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SAMPLER2D(s_ao, 2);
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uniform vec4 u_combineParams[2];
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void main()
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{
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vec2 tc0 = v_texcoord0 * u_combineParams[1].xy + u_combineParams[1].zw;
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vec3 albedoColor = vec3(1.0,1.0,1.0);
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if (u_combineParams[0].x > 0.0)
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{
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albedoColor = texture2D(s_color, tc0).rgb;
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}
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float light = 1.0;
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if (u_combineParams[0].x > 0.0)
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{
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vec3 n = texture2D(s_normal, tc0).xyz;
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// Expand out normal
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n = n*2.0-1.0;
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vec3 l = normalize(vec3(-0.8,0.75,-1.0));
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light = max(0.0,dot(n,l)) * 1.2+ 0.3;
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}
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float ao = 1.0;
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if ( u_combineParams[0].y > 0.0)
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{
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ao = texture2D(s_ao, tc0).x;
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}
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gl_FragColor = vec4(albedoColor * light * ao, 1.0f);
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}
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