int GzPutTriangle(GzRender *render, int numParts, GzToken *nameList,
GzPointer *valueList)
/* numParts : how many names and values */
{
/*
- pass in a triangle description with tokens and values corresponding to
GZ_POSITION:3 vert positions in model space
- Xform positions of verts
- Clip - just discard any triangle with verts behind view plane
- test for triangles with all three verts off-screen
- invoke triangle rasterizer
*/
GzCoord *transfVert, *NormVert;
if(render==NULL)
return GZ_FAILURE;
for(int i=0; i<numParts;i++ )
{
GzCoord *coord=(GzCoord *)(valueList[i]);
if(nameList[i]==GZ_POSITION)
{
transfVert=(GzCoord *)malloc(3*sizeof(GzCoord));
for(int i=0;i<3;i++)
transformation(render->Ximage[render->matlevel],coord[i],transfVert[i] );
//
//Rasterization( render,transfVert);
}
else if (nameList[i]==GZ_NORMAL)
{
NormVert=(GzCoord *)malloc(3*sizeof(GzCoord));
// GzCoord *coord=(GzCoord *)(valueList[i]);
for(int i=0;i<3;i++)
transformation(render->Xnorm[render->matlevel],coord[i],NormVert[i] );
//Rasterization( render,transfVert);
}
else if (nameList[i]==GZ_NULL_TOKEN)
{
}
}
Rasterization( render,transfVert,NormVert);
return GZ_SUCCESS;
}
void Renderer::DrawPrimitive(Primitive *primitive)
{
rend_primitive_ = RendPrimitive(primitive->size, primitive->material);
for (int i = 0; i < rend_primitive_.size; ++i)
{
rend_primitive_.position[i].SetVector3(primitive->position[i]);
rend_primitive_.position[i].w = 1.0f;
rend_primitive_.normals[i].SetVector3(primitive->normals[i]);
rend_primitive_.normals[i].w = 0.0f;
rend_primitive_.colors[i] = primitive->colors[i];
}
ModelViewTransform();
// Lighting();
Projection();
Clipping(Vector3(-1, -1, 0), Vector3(1, 1, 1.0f));
Rasterization();
}