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patch TinyRenderer so it software-renders in an OpenGL texture, for testing

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fix texture support: flip texture to make OpenGL happy (lower-left is origin)
add path prefix to .obj loader, so materials/textures are loaded ok.
This commit is contained in:
erwin coumans
2016-04-26 20:52:52 -07:00
parent 2cb39e358a
commit 03bdcc8737
16 changed files with 496 additions and 195 deletions
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11
examples/TinyRenderer/geometry.h
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@@ -1,9 +1,9 @@
#ifndef __GEOMETRY_H__
#define __GEOMETRY_H__
#include <cmath>
#include <vector>
#include <cassert>
#include <iostream>
#include <stdlib.h>
template<size_t DimCols,size_t DimRows,typename T> class mat;
@@ -85,14 +85,14 @@ template<size_t LEN,size_t DIM, typename T> vec<LEN,T> proj(const vec<DIM,T> &v)
template <typename T> vec<3,T> cross(vec<3,T> v1, vec<3,T> v2) {
return vec<3,T>(v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
}
#if 0
template <size_t DIM, typename T> std::ostream& operator<<(std::ostream& out, vec<DIM,T>& v) {
for(unsigned int i=0; i<DIM; i++) {
out << v[i] << " " ;
}
return out ;
}
#endif
/////////////////////////////////////////////////////////////////////////////////
template<size_t DIM,typename T> struct dt {
@@ -204,11 +204,12 @@ template<size_t DimRows,size_t DimCols,typename T>mat<DimCols,DimRows,T> operato
return lhs;
}
#if 0
template <size_t DimRows,size_t DimCols,class T> std::ostream& operator<<(std::ostream& out, mat<DimRows,DimCols,T>& m) {
for (size_t i=0; i<DimRows; i++) out << m[i] << std::endl;
return out;
}
#endif
/////////////////////////////////////////////////////////////////////////////////
typedef vec<2, float> Vec2f;