diff options
Diffstat (limited to 'drivers/gles3/shaders/effect_blur.glsl')
| -rw-r--r-- | drivers/gles3/shaders/effect_blur.glsl | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/gles3/shaders/effect_blur.glsl b/drivers/gles3/shaders/effect_blur.glsl new file mode 100644 index 0000000000..fc6de7f654 --- /dev/null +++ b/drivers/gles3/shaders/effect_blur.glsl @@ -0,0 +1,57 @@ +[vertex] + + +layout(location=0) in highp vec4 vertex_attrib; +layout(location=4) in vec2 uv_in; + +out vec2 uv_interp; + + +void main() { + + uv_interp = uv_in; + gl_Position = vertex_attrib; +} + +[fragment] + + +in vec2 uv_interp; +uniform sampler2D source_color; //texunit:0 + +uniform float lod; +uniform vec2 pixel_size; + + +layout(location = 0) out vec4 frag_color; + +void main() { + + + +#ifdef GAUSSIAN_HORIZONTAL + vec4 color =textureLod( source_color, uv_interp+vec2( 0.0, 0.0)*pixel_size,lod )*0.38774; + color+=textureLod( source_color, uv_interp+vec2( 1.0, 0.0)*pixel_size,lod )*0.24477; + color+=textureLod( source_color, uv_interp+vec2( 2.0, 0.0)*pixel_size,lod )*0.06136; + color+=textureLod( source_color, uv_interp+vec2(-1.0, 0.0)*pixel_size,lod )*0.24477; + color+=textureLod( source_color, uv_interp+vec2(-2.0, 0.0)*pixel_size,lod )*0.06136; + frag_color = color; +#endif + +#ifdef GAUSSIAN_VERTICAL + vec4 color =textureLod( source_color, uv_interp+vec2( 0.0, 0.0)*pixel_size,lod )*0.38774; + color+=textureLod( source_color, uv_interp+vec2( 0.0, 1.0)*pixel_size,lod )*0.24477; + color+=textureLod( source_color, uv_interp+vec2( 0.0, 2.0)*pixel_size,lod )*0.06136; + color+=textureLod( source_color, uv_interp+vec2( 0.0,-1.0)*pixel_size,lod )*0.24477; + color+=textureLod( source_color, uv_interp+vec2( 0.0,-2.0)*pixel_size,lod )*0.06136; + frag_color = color; +#endif + +#ifdef SIMPLE_COPY + vec4 color =textureLod( source_color, uv_interp,0.0); + frag_color = color; +#endif + + +} + |