blurV.glsl
上传用户:king477883
上传日期:2021-03-01
资源大小:9553k
文件大小:1k
- /**
- * @file blurV.glsl
- *
- * Copyright (c) 2007-$CurrentYear$, Linden Research, Inc.
- * $License$
- */
- uniform vec2 texelSize;
- uniform vec2 blurDirection;
- uniform float blurWidth;
- void main(void)
- {
- // Transform vertex
- gl_Position = ftransform();
-
- vec2 blurDelta = texelSize * blurDirection * vec2(blurWidth, blurWidth);
- vec2 s = gl_MultiTexCoord0.st - (blurDelta * 3.0);
-
- // for (int i = 0; i < 7; i++) {
- // gl_TexCoord[i].st = s + (i * blurDelta);
- // }
- // MANUALLY UNROLL
- gl_TexCoord[0].st = s;
- gl_TexCoord[1].st = s + blurDelta;
- gl_TexCoord[2].st = s + (2. * blurDelta);
- gl_TexCoord[3].st = s + (3. * blurDelta);
- gl_TexCoord[4].st = s + (4. * blurDelta);
- gl_TexCoord[5].st = s + (5. * blurDelta);
- gl_TexCoord[6].st = s + (6. * blurDelta);
- // gl_TexCoord[0].st = s;
- // gl_TexCoord[1].st = blurDelta;
- }