69 lines
2.0 KiB
INI
69 lines
2.0 KiB
INI
////////////////////////////////////////////////
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//
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// UI shaders
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//
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////////////////////////////////////////////////
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lazyshader 0 "modelpreview" [
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attribute vec4 vvertex;
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attribute vec2 vtexcoord0;
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varying vec2 texcoord0;
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void main(void)
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{
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gl_Position = vvertex;
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texcoord0 = vtexcoord0;
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}
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] [
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@(gfetchdefs [tex0 tex1 tex3])
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uniform vec3 camera;
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uniform mat4 worldmatrix;
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uniform vec4 lightscale;
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uniform vec3 sunlightdir;
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uniform vec3 sunlightcolor;
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uniform float cutout;
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varying vec2 texcoord0;
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fragdata(0) vec4 fragcolor;
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void main(void)
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{
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vec4 normal = gfetch(tex1, texcoord0);
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if(normal.x + normal.y == cutout) discard;
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normal.xyz = normal.xyz*2.0 - 1.0;
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@(if $usepacknorm [result [
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float glowscale = dot(normal.xyz, normal.xyz);
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normal.xyz *= inversesqrt(glowscale);
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@(unpacknorm glowscale)
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]] [result [
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#define glowscale normal.a
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]])
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vec4 diffuse = gfetch(tex0, texcoord0);
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vec3 glow = diffuse.rgb * (1.0 - glowscale);
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diffuse.rgb *= glowscale;
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vec3 light = diffuse.rgb * lightscale.rgb;
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light += glow.rgb * lightscale.a;
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float sunfacing = dot(sunlightdir, normal.xyz);
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if(sunfacing > 0.0)
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{
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@(gdepthunpack depth [gfetch(tex3, texcoord0)] [
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vec3 pos = (worldmatrix * vec4(depth*texcoord0, depth, 1.0)).xyz;
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] [
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vec4 pos = worldmatrix * vec4(texcoord0, depth, 1.0);
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pos.xyz /= pos.w;
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])
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@(unpackspec)
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float sunspec = pow(clamp(sunfacing*facing - dot(camdir, sunlightdir), 0.0, 1.0), gloss) * specscale;
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light += (diffuse.rgb*sunfacing + sunspec) * sunlightcolor;
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}
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fragcolor.rgb = light;
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fragcolor.a = 1.0;
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}
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]
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