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Platform: Make changes to defaultskin.glsl that were contributed by dear Slartibarty. <3

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This commit is contained in:
Marco Cawthorne 2023-01-12 18:43:19 -08:00
parent 5f011a28dd
commit c26f7ab2c4
Signed by: eukara
GPG key ID: CE2032F0A2882A22
1 changed files with 48 additions and 1 deletions
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49
platform/base_glsl.pk3dir/glsl/defaultskin.glsl
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@ -1,4 +1,4 @@
!!ver 130
!!ver 130
!!permu FRAMEBLEND
!!permu SKELETAL
!!permu UPPERLOWER
@ -64,6 +64,24 @@ varying vec3 light;
}
#endif
vec3 VectorIRotate( vec3 inPos, mat3x4 xform )
{
vec3 outPos;
outPos.x = inPos.x*xform[0][0] + inPos.y*xform[1][0] + inPos.z*xform[2][0];
outPos.y = inPos.x*xform[0][1] + inPos.y*xform[1][1] + inPos.z*xform[2][1];
outPos.z = inPos.x*xform[0][2] + inPos.y*xform[1][2] + inPos.z*xform[2][2];
return outPos;
}
vec3 VectorTransform( vec3 inPos, mat3x4 xform )
{
vec3 outPos;
outPos.x = dot( inPos, xform[0].xyz ) + xform[0][3];
outPos.y = dot( inPos, xform[1].xyz ) + xform[1][3];
outPos.z = dot( inPos, xform[2].xyz ) + xform[2][3];
return outPos;
}
void main ()
{
vec3 n, s, t, w;
@ -93,6 +111,8 @@ varying vec3 light;
}
#ifdef CHROME
#ifdef SKELETAL
#if 0
vec3 rorg = rlv(vec3(0,0,0), w, e_light_dir);
vec3 viewc = normalize(rorg - w);
float d = dot(n, viewc);
@ -102,7 +122,34 @@ varying vec3 light;
reflected.z = n.z * 2.0 * d - viewc.z;
tex_c.x = 0.5 + reflected.y * 0.5;
tex_c.y = 0.5 - reflected.z * 0.5;
#else
/* code contributed by Slartibarty */
vec3 tmp = normalize(e_eyepos);
int boneid = int(v_bone.r);
tmp.x += m_bones_mat3x4[boneid][0][3];
tmp.y += m_bones_mat3x4[boneid][1][3];
tmp.z += m_bones_mat3x4[boneid][2][3];
tmp = normalize( tmp );
vec3 chromeUp = normalize( cross( tmp, vec3( m_modelview[0][0], m_modelview[1][0], m_modelview[2][0] ) ) );
vec3 chromeRight = normalize( cross( chromeUp, tmp ) );
chromeUp = VectorIRotate( chromeUp, m_bones_mat3x4[boneid] );
chromeRight = VectorIRotate( chromeRight, m_bones_mat3x4[boneid] );
float na;
// calc s coord
na = dot( v_normal, chromeRight );
tex_c.x = ( na + 1.0 ) * 0.5;
// calc t coord
na = dot( v_normal, chromeUp );
tex_c.y = ( na + 1.0 ) * 0.5;
#endif
#endif
#endif
#ifdef REFLECTCUBE
invsurface[0] = v_svector;