fixed_function_approximation_shader.h

#ifndef NXDK_PGRAPH_TESTS_SRC_SHADERS_FIXED_FUNCTION_APPROXIMATION_SHADER_H_
#define NXDK_PGRAPH_TESTS_SRC_SHADERS_FIXED_FUNCTION_APPROXIMATION_SHADER_H_
 
#include "shaders/perspective_vertex_shader.h"
#include "xbox_math_matrix.h"
 
using namespace XboxMath;
 
class FixedFunctionApproximationShader : public PBKitPlusPlus::PerspectiveVertexShader {
 public:
  FixedFunctionApproximationShader(uint32_t framebuffer_width, uint32_t framebuffer_height, float z_min = 0,
                                   float z_max = 0x7FFF, float fov_y = M_PI * 0.25f, float near = 1.0f,
                                   float far = 10.0f);
 
  void SetDirectionalLightDirection(const vector_t &direction);
 
  void SetDirectionalLightCastDirection(const vector_t &direction);
 
 protected:
  int OnLoadConstants() override;
 
 private:
  vector_t light_direction_ = {0, 0, 1, 1};
};
 
#endif  // NXDK_PGRAPH_TESTS_SRC_SHADERS_FIXED_FUNCTION_APPROXIMATION_SHADER_H_