extractF.glsl
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:1k
- /**
- * @file extractF.glsl
- *
- * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
- * $License$
- */
- uniform sampler2DRect RenderTexture;
- uniform float extractLow;
- uniform float extractHigh;
- uniform vec3 lumWeights;
- void main(void)
- {
- /// Get scene color
- vec3 color = vec3(texture2DRect(RenderTexture, gl_TexCoord[0].st));
-
- /// Extract luminance and scale up by night vision brightness
- float lum = smoothstep(extractLow, extractHigh, dot(color, lumWeights));
- gl_FragColor = vec4(vec3(lum), 1.0);
- }