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Fix shader compilation with render_mode: specular_phong

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This commit is contained in:
Yuri Roubinsky 2021-06-08 17:39:41 +03:00
parent c994f754ee
commit 5d5400a3b1
1 changed files with 4 additions and 0 deletions
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4
servers/rendering/renderer_rd/shaders/scene_forward_lights_inc.glsl
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@ -238,7 +238,11 @@ void light_compute(vec3 N, vec3 L, vec3 V, vec3 light_color, float attenuation,
#elif defined(SPECULAR_PHONG)
vec3 R = normalize(-reflect(L, N));
#ifdef USE_SOFT_SHADOWS
float cRdotV = clamp(A + dot(R, V), 0.0, 1.0);
#else
float cRdotV = clamp(dot(R, V), 0.0, 1.0);
#endif
float shininess = exp2(15.0 * (1.0 - roughness) + 1.0) * 0.25;
float phong = pow(cRdotV, shininess);
phong *= (shininess + 8.0) * (1.0 / (8.0 * M_PI));