take tangent from bsp data directly, fix #218
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@ -456,8 +456,6 @@ static qboolean loadBrushSurfaces( model_sizes_t sizes, const model_t *mod ) {
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vk_render_geometry_t *model_geometry = bmodel->render_model.geometries + num_geometries;
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const float sample_size = gEngine.Mod_SampleSizeForFace( surf );
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int index_count = 0;
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vec3_t pos[3];
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vec2_t uv[3];
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vec3_t tangent;
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if (!renderableSurface(surf, -1))
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@ -496,6 +494,9 @@ static qboolean loadBrushSurfaces( model_sizes_t sizes, const model_t *mod ) {
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model_geometry->material = kXVkMaterialConveyor;
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}
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VectorCopy(surf->texinfo->vecs[0], tangent);
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VectorNormalize(tangent);
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for( int k = 0; k < surf->numedges; k++ )
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{
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const int iedge = mod->surfedges[surf->firstedge + k];
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@ -514,18 +515,6 @@ static qboolean loadBrushSurfaces( model_sizes_t sizes, const model_t *mod ) {
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vertex.gl_tc[0] = s;
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vertex.gl_tc[1] = t;
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// TODO replace this with constructing tangent from surf->texinfo->vecs
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if (k < 3) {
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VectorCopy(vertex.pos, pos[k]);
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Vector2Copy(vertex.gl_tc, uv[k]);
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if (k == 2) {
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computeTangent(tangent, pos[0], pos[1], pos[2], uv[0], uv[1], uv[2]);
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VectorCopy(tangent, bvert[-1].tangent);
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VectorCopy(tangent, bvert[-2].tangent);
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}
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}
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VectorCopy(tangent, vertex.tangent);
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// lightmap texture coordinates
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s = DotProduct( in_vertex->position, info->lmvecs[0] ) + info->lmvecs[0][3];
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s -= info->lightmapmins[0];
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@ -543,6 +532,8 @@ static qboolean loadBrushSurfaces( model_sizes_t sizes, const model_t *mod ) {
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VectorNegate( surf->plane->normal, vertex.normal );
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else VectorCopy( surf->plane->normal, vertex.normal );
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VectorCopy(tangent, vertex.tangent);
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vertex.lm_tc[0] = s;
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vertex.lm_tc[1] = t;
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