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Differential D4269 Diff 13386 source/blender/gpu/shaders/gpu_shader_material.glsl

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source/blender/gpu/shaders/gpu_shader_material.glsl

Show First 20 Lines • Show All 1,083 Lines • ▼ Show 20 Linesvoid convert_metallic_to_specular_tinted(
vec3 tmp_col = mix(vec3(1.0), basecol_tint, specular_tint); vec3 tmp_col = mix(vec3(1.0), basecol_tint, specular_tint);
f0 = mix((0.08 * specular_fac) * tmp_col, basecol, metallic); f0 = mix((0.08 * specular_fac) * tmp_col, basecol, metallic);
diffuse = basecol * (1.0 - metallic); diffuse = basecol * (1.0 - metallic);
} }
vec3 principled_sheen(float NV, vec3 basecol_tint, float sheen_tint) vec3 principled_sheen(float NV, vec3 basecol_tint, float sheen_tint)
{ {
float f = 1.0 - NV; float f = 1.0 - NV;
/* Temporal fix for T59784. Normal map seems to contain NaNs for tangent space normal maps, therefore we need to clamp value. */
brechtUnsubmitted
Not Done
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Temporal -> Temporary

brecht: Temporal -> Temporary
f = clamp(f, -1.0, 1.0);
fclemUnsubmitted
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The following fit is only valid for N.V in [0..1] range. So it might even be better to clamp(f, 0.0, 1.0) instead.

fclem: The following fit is only valid for N.V in [0..1] range. So it might even be better to clamp(f…
/* Empirical approximation (manual curve fitting). Can be refined. */ /* Empirical approximation (manual curve fitting). Can be refined. */
float sheen = f*f*f*0.077 + f*0.01 + 0.00026; float sheen = f*f*f*0.077 + f*0.01 + 0.00026;
return sheen * mix(vec3(1.0), basecol_tint, sheen_tint); return sheen * mix(vec3(1.0), basecol_tint, sheen_tint);
} }
#ifndef VOLUMETRICS #ifndef VOLUMETRICS
void node_bsdf_diffuse(vec4 color, float roughness, vec3 N, out Closure result) void node_bsdf_diffuse(vec4 color, float roughness, vec3 N, out Closure result)
{ {
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