Stowage/godot
2
0
Fork 0
mirror of https://github.com/godotengine/godot.git synced 2025-12-08 06:09:55 +00:00
Code Issues Projects Releases Packages Wiki Activity

Fix division by zero in clearcoat

Browse source 
Prevents the clearcoat model from generating NaN values at grazing angles
This commit is contained in:
Mingxi Zhang 2025-07-07 21:38:49 +08:00 • committed by Mingxi Zhang
parent 4d1f26e1fd
commit 2096e4c007
2 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/gles3/shaders/scene.glsl
View file

@ -1448,7 +1448,7 @@ void light_compute(vec3 N, vec3 L, vec3 V, float A, vec3 light_color, bool is_di
float cLdotH5 = SchlickFresnel(cLdotH); float cLdotH5 = SchlickFresnel(cLdotH);
#endif #endif
float Dr = D_GGX(ccNdotH, mix(0.001, 0.1, clearcoat_roughness)); float Dr = D_GGX(ccNdotH, mix(0.001, 0.1, clearcoat_roughness));
float Gr = 0.25 / (cLdotH * cLdotH); float Gr = 0.25 / (cLdotH * cLdotH + 1e-4);
float Fr = mix(.04, 1.0, cLdotH5); float Fr = mix(.04, 1.0, cLdotH5);
float clearcoat_specular_brdf_NL = clearcoat * Gr * Fr * Dr * cNdotL; float clearcoat_specular_brdf_NL = clearcoat * Gr * Fr * Dr * cNdotL;

2
servers/rendering/renderer_rd/shaders/scene_forward_lights_inc.glsl
View file

@ -167,7 +167,7 @@ void light_compute(hvec3 N, hvec3 L, hvec3 V, half A, hvec3 light_color, bool is
half cLdotH5 = SchlickFresnel(cLdotH); half cLdotH5 = SchlickFresnel(cLdotH);
half Dr = D_GGX(ccNdotH, half(mix(half(0.001), half(0.1), clearcoat_roughness)), vertex_normal, H); half Dr = D_GGX(ccNdotH, half(mix(half(0.001), half(0.1), clearcoat_roughness)), vertex_normal, H);
half Gr = half(0.25) / (cLdotH * cLdotH); half Gr = half(0.25) / (cLdotH * cLdotH + half(1e-4));
half Fr = mix(half(0.04), half(1.0), cLdotH5); half Fr = mix(half(0.04), half(1.0), cLdotH5);
half clearcoat_specular_brdf_NL = clearcoat * Gr * Fr * Dr * cNdotL; half clearcoat_specular_brdf_NL = clearcoat * Gr * Fr * Dr * cNdotL;