diff options
| author | SmileTheory <SmileTheory@gmail.com> | 2016-03-07 02:27:03 -0800 |
|---|---|---|
| committer | Tim Angus <tim@ngus.net> | 2016-04-07 11:54:14 +0100 |
| commit | 5d1223366351d7ed9ee537d8f4245ab29b550d2c (patch) | |
| tree | 700ff09741d944bb6ea5e71bbc0119c97acde523 /src/renderergl2/glsl | |
| parent | fdf6b74c210f7cc1fd54472308fc61c9341c4de1 (diff) | |
OpenGL2: Add r_shadowBlur.
Diffstat (limited to 'src/renderergl2/glsl')
| -rw-r--r-- | src/renderergl2/glsl/depthblur_fp.glsl | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/renderergl2/glsl/depthblur_fp.glsl b/src/renderergl2/glsl/depthblur_fp.glsl index 93895b4e..15f7be27 100644 --- a/src/renderergl2/glsl/depthblur_fp.glsl +++ b/src/renderergl2/glsl/depthblur_fp.glsl @@ -1,13 +1,13 @@ uniform sampler2D u_ScreenImageMap; uniform sampler2D u_ScreenDepthMap; -uniform vec4 u_ViewInfo; // zfar / znear, zfar +uniform vec4 u_ViewInfo; // zfar / znear, zfar, 1/width, 1/height varying vec2 var_ScreenTex; //float gauss[5] = float[5](0.30, 0.23, 0.097, 0.024, 0.0033); float gauss[4] = float[4](0.40, 0.24, 0.054, 0.0044); //float gauss[3] = float[3](0.60, 0.19, 0.0066); -#define GAUSS_SIZE 4 +#define BLUR_SIZE 4 float getLinearDepth(sampler2D depthMap, const vec2 tex, const float zFarDivZNear) { @@ -17,7 +17,7 @@ float getLinearDepth(sampler2D depthMap, const vec2 tex, const float zFarDivZNea vec4 depthGaussian1D(sampler2D imageMap, sampler2D depthMap, vec2 tex, float zFarDivZNear, float zFar) { - float scale = 1.0 / 256.0; + vec2 scale = u_ViewInfo.zw; #if defined(USE_HORIZONTAL_BLUR) vec2 direction = vec2(1.0, 0.0) * scale; @@ -27,22 +27,32 @@ vec4 depthGaussian1D(sampler2D imageMap, sampler2D depthMap, vec2 tex, float zFa float depthCenter = zFar * getLinearDepth(depthMap, tex, zFarDivZNear); vec2 centerSlope = vec2(dFdx(depthCenter), dFdy(depthCenter)) / vec2(dFdx(tex.x), dFdy(tex.y)); - + +#if defined(USE_GAUSS) vec4 result = texture2D(imageMap, tex) * gauss[0]; float total = gauss[0]; +#else + vec4 result = texture2D(imageMap, tex); + float total = 1.0; +#endif int i, j; for (i = 0; i < 2; i++) { - for (j = 1; j < GAUSS_SIZE; j++) + for (j = 1; j < BLUR_SIZE; j++) { vec2 offset = direction * j; float depthSample = zFar * getLinearDepth(depthMap, tex + offset, zFarDivZNear); float depthExpected = depthCenter + dot(centerSlope, offset); if(abs(depthSample - depthExpected) < 5.0) { +#if defined(USE_GAUSS) result += texture2D(imageMap, tex + offset) * gauss[j]; total += gauss[j]; +#else + result += texture2D(imageMap, tex + offset); + total += 1.0; +#endif } } |