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Automatically ensure correct normals in Compatibility renderer

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This commit is contained in:
BlueCube3310 2023-10-04 19:18:40 +02:00
parent f71f4b80e3
commit f31371c04e
2 changed files with 14 additions and 1 deletions
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13
drivers/gles3/shaders/scene.glsl
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@ -139,6 +139,8 @@ layout(location = 14) in highp vec4 instance_xform2;
layout(location = 15) in highp uvec4 instance_color_custom_data; // Color packed into xy, Custom data into zw.
#endif
#define FLAGS_NON_UNIFORM_SCALE (1 << 4)
layout(std140) uniform GlobalShaderUniformData { //ubo:1
vec4 global_shader_uniforms[MAX_GLOBAL_SHADER_UNIFORMS];
};
@ -242,6 +244,8 @@ uniform highp vec3 compressed_aabb_position;
uniform highp vec3 compressed_aabb_size;
uniform highp vec4 uv_scale;
uniform highp uint model_flags;
/* Varyings */
out highp vec3 vertex_interp;
@ -310,7 +314,14 @@ void main() {
#ifdef NORMAL_USED
vec3 normal = oct_to_vec3(axis_tangent_attrib.xy * 2.0 - 1.0);
#endif
highp mat3 model_normal_matrix = mat3(model_matrix);
highp mat3 model_normal_matrix;
if (bool(model_flags & uint(FLAGS_NON_UNIFORM_SCALE))) {
model_normal_matrix = transpose(inverse(mat3(model_matrix)));
} else {
model_normal_matrix = mat3(model_matrix);
}
#if defined(NORMAL_USED) || defined(TANGENT_USED) || defined(NORMAL_MAP_USED) || defined(LIGHT_ANISOTROPY_USED)