diff options
Diffstat (limited to 'drivers/gles2/shaders')
| -rw-r--r-- | drivers/gles2/shaders/cubemap_filter.glsl | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gles2/shaders/cubemap_filter.glsl b/drivers/gles2/shaders/cubemap_filter.glsl index 06274a7698..f551cdb52b 100644 --- a/drivers/gles2/shaders/cubemap_filter.glsl +++ b/drivers/gles2/shaders/cubemap_filter.glsl @@ -25,9 +25,17 @@ void main() { /* clang-format off */ [fragment] +#ifdef GL_EXT_shader_texture_lod +#extension GL_EXT_shader_texture_lod : enable +#define texture2DLod(img, coord, lod) texture2DLodEXT(img, coord, lod) +#define textureCubeLod(img, coord, lod) textureCubeLodEXT(img, coord, lod) +#endif + +#ifdef GL_ARB_shader_texture_lod #extension GL_ARB_shader_texture_lod : enable +#endif -#ifndef GL_ARB_shader_texture_lod +#if !defined(GL_EXT_shader_texture_lod) && !defined(GL_ARB_shader_texture_lod) #define texture2DLod(img, coord, lod) texture2D(img, coord) #define textureCubeLod(img, coord, lod) textureCube(img, coord) #endif @@ -118,7 +126,13 @@ vec3 texelCoordToVec(vec2 uv, int faceID) { faceUvVectors[5][2] = vec3(0.0, 0.0, 1.0); // +z face // out = u * s_faceUv[0] + v * s_faceUv[1] + s_faceUv[2]. - vec3 result = (faceUvVectors[faceID][0] * uv.x) + (faceUvVectors[faceID][1] * uv.y) + faceUvVectors[faceID][2]; + vec3 result; + for (int i = 0; i < 6; i++) { + if (i == faceID) { + result = (faceUvVectors[i][0] * uv.x) + (faceUvVectors[i][1] * uv.y) + faceUvVectors[i][2]; + break; + } + } return normalize(result); } |