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3D-Viewer: do not change the z component of the normal on silkscreen material 

Fixes https://gitlab.com/kicad/code/kicad/issues/9823
This commit is contained in:
Mario Luzeiro 2021-12-12 19:39:03 +00:00 committed by Jeff Young
parent ed3b711471
commit f81539cd41
1 changed files with 9 additions and 5 deletions
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14
3d-viewer/3d_rendering/raytracing/material.cpp
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@ -309,13 +309,17 @@ SFVEC3F SILK_SCREEN_NORMAL::Generate( const RAY& aRay, const HITINFO& aHitInfo )
{
const SFVEC3F hitPos = aHitInfo.m_HitPoint * m_scale;
const float noise1 = s_perlinNoise.noise( hitPos.x * 2.7f, hitPos.y * 2.6f, hitPos.z );
const float noise1 = s_perlinNoise.noise( hitPos.x * 2.0f, hitPos.y * 2.0f, hitPos.z );
const float noise2 = s_perlinNoise.noise( hitPos.x * 1.1f, hitPos.y * 1.2f, hitPos.z );
const float noise2 = s_perlinNoise.noise( hitPos.x * 0.6f, hitPos.y * 0.6f, hitPos.z );
SFVEC3F t =
glm::abs( ( 1.8f / ( SFVEC3F( noise1, noise2, hitPos.z ) + 0.4f ) ) - 1.5f ) - 0.25f;
t = t * t * t * 0.1f;
SFVEC3F t = SFVEC3F( noise1, noise2, 0.0f ) - 0.5f;
SFVEC3F tt = t * t;
t = t * tt * tt * 100.0f; // this factor controls the intensity of the effect
t.z = 0.0f; // this will keep untouch the original z component of the normal
return t;
}