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Fix T79557 EEVEE: Normalize in vector math node is not null vector safe

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This add basic null safe handling for this operation.
This commit is contained in:
Clément Foucault
2020-09-18 23:42:43 +02:00
parent a0a536bbff
commit aa2e978bd8
1 changed files with 6 additions and 1 deletions
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7
source/blender/gpu/shaders/material/gpu_shader_material_vector_math.glsl
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@@ -64,7 +64,12 @@ void vector_math_scale(vec3 a, vec3 b, vec3 c, float scale, out vec3 outVector,
void vector_math_normalize( void vector_math_normalize(
vec3 a, vec3 b, vec3 c, float scale, out vec3 outVector, out float outValue) vec3 a, vec3 b, vec3 c, float scale, out vec3 outVector, out float outValue)
{ {
outVector = normalize(a); outVector = a;
/* Safe version of normalize(a). */
float lenSquared = dot(a, a);
if (lenSquared > 0.0) {
outVector *= inversesqrt(lenSquared);
}
} }
void vector_math_snap(vec3 a, vec3 b, vec3 c, float scale, out vec3 outVector, out float outValue) void vector_math_snap(vec3 a, vec3 b, vec3 c, float scale, out vec3 outVector, out float outValue)