diff options
Diffstat (limited to 'src/opengl/util/pattern_brush.glsl')
-rw-r--r-- | src/opengl/util/pattern_brush.glsl | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/src/opengl/util/pattern_brush.glsl b/src/opengl/util/pattern_brush.glsl deleted file mode 100644 index 31702b887c..0000000000 --- a/src/opengl/util/pattern_brush.glsl +++ /dev/null @@ -1,23 +0,0 @@ -uniform sampler2D brush_texture; -uniform vec2 inv_brush_texture_size; -uniform vec3 inv_matrix_m0; -uniform vec3 inv_matrix_m1; -uniform vec3 inv_matrix_m2; - -vec4 brush() -{ - mat3 mat; - - mat[0] = inv_matrix_m0; - mat[1] = inv_matrix_m1; - mat[2] = inv_matrix_m2; - - vec3 hcoords = mat * vec3(gl_FragCoord.xy, 1); - vec2 coords = hcoords.xy / hcoords.z; - - coords *= inv_brush_texture_size; - - float alpha = 1.0 - texture2D(brush_texture, coords).r; - - return gl_Color * alpha; -} |