diff options
| -rw-r--r-- | drivers/gles3/shaders/canvas.glsl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gles3/shaders/canvas.glsl b/drivers/gles3/shaders/canvas.glsl index b3366a7f99..7aafd28c35 100644 --- a/drivers/gles3/shaders/canvas.glsl +++ b/drivers/gles3/shaders/canvas.glsl @@ -520,7 +520,11 @@ FRAGMENT_SHADER_CODE #ifdef USE_LIGHTING - vec2 light_vec = (inverse(light_matrix)*vec4(normalize(light_uv_interp.zw),0.0,0.0)).xy; //for normal mapping + mat3 inverse_light_matrix = mat3(inverse(light_matrix)); + inverse_light_matrix[0] = normalize(inverse_light_matrix[0]); + inverse_light_matrix[1] = normalize(inverse_light_matrix[1]); + inverse_light_matrix[2] = normalize(inverse_light_matrix[2]); + vec2 light_vec = (inverse_light_matrix * vec3(light_uv_interp.zw,0.0)).xy; //for normal mapping if (normal_used) { normal.xy = mat2(local_rot.xy,local_rot.zw) * normal.xy; |