diff options
| -rw-r--r-- | modules/gltf/gltf_document.cpp | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp index d23ce87bcf..833bcb00e6 100644 --- a/modules/gltf/gltf_document.cpp +++ b/modules/gltf/gltf_document.cpp @@ -3392,29 +3392,32 @@ Error GLTFDocument::_serialize_materials(Ref<GLTFState> state) { tex.instantiate(); { Ref<Texture2D> normal_texture = material->get_texture(BaseMaterial3D::TEXTURE_NORMAL); - // Code for uncompressing RG normal maps - Ref<Image> img = normal_texture->get_image(); - Ref<ImageTexture> img_tex = img; - if (img_tex.is_valid()) { - img = img_tex->get_image(); - } - img->decompress(); - img->convert(Image::FORMAT_RGBA8); - img->convert_ra_rgba8_to_rg(); - for (int32_t y = 0; y < img->get_height(); y++) { - for (int32_t x = 0; x < img->get_width(); x++) { - Color c = img->get_pixel(x, y); - Vector2 red_green = Vector2(c.r, c.g); - red_green = red_green * Vector2(2.0f, 2.0f) - Vector2(1.0f, 1.0f); - float blue = 1.0f - red_green.dot(red_green); - blue = MAX(0.0f, blue); - c.b = Math::sqrt(blue); - img->set_pixel(x, y, c); + if (normal_texture.is_valid()) { + // Code for uncompressing RG normal maps + Ref<Image> img = normal_texture->get_image(); + if (img.is_valid()) { + Ref<ImageTexture> img_tex = img; + if (img_tex.is_valid()) { + img = img_tex->get_image(); + } + img->decompress(); + img->convert(Image::FORMAT_RGBA8); + img->convert_ra_rgba8_to_rg(); + for (int32_t y = 0; y < img->get_height(); y++) { + for (int32_t x = 0; x < img->get_width(); x++) { + Color c = img->get_pixel(x, y); + Vector2 red_green = Vector2(c.r, c.g); + red_green = red_green * Vector2(2.0f, 2.0f) - Vector2(1.0f, 1.0f); + float blue = 1.0f - red_green.dot(red_green); + blue = MAX(0.0f, blue); + c.b = Math::sqrt(blue); + img->set_pixel(x, y, c); + } + } + tex->create_from_image(img); } } - tex->create_from_image(img); } - Ref<Texture2D> normal_texture = material->get_texture(BaseMaterial3D::TEXTURE_NORMAL); GLTFTextureIndex gltf_texture_index = -1; if (tex.is_valid() && tex->get_image().is_valid()) { tex->set_name(material->get_name() + "_normal"); |