63 lines
2.6 KiB
C
63 lines
2.6 KiB
C
|
/*
|
||
|
|
* Created by Brett Terpstra 6920201 on 23/10/22.
|
||
|
|
* Copyright (c) 2022 Brett Terpstra. All Rights Reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef STEP_3_SHADER_H
|
||
|
|
#define STEP_3_SHADER_H
|
||
|
|
|
||
|
|
#include "engine/util/std.h"
|
||
|
|
#include "engine/math/vectors.h"
|
||
|
|
#include <GL/gl.h>
|
||
|
|
#include <GLES3/gl32.h>
|
||
|
|
#include <GL/glx.h>
|
||
|
|
#include <GL/glu.h>
|
||
|
|
|
||
|
|
// opengl shader
|
||
|
|
|
||
|
|
namespace Raytracing {
|
||
|
|
|
||
|
|
class Shader {
|
||
|
|
private:
|
||
|
|
struct IntDefaultedToMinusOne {
|
||
|
|
GLint i = -1;
|
||
|
|
};
|
||
|
|
// we can have shaders of many types in OpenGL
|
||
|
|
unsigned int programID = 0;
|
||
|
|
// but we will only make use of these two for now
|
||
|
|
unsigned int vertexShaderID = 0;
|
||
|
|
unsigned int fragmentShaderID = 0;
|
||
|
|
// while these will remain unused.
|
||
|
|
unsigned int geometryShaderID = 0;
|
||
|
|
unsigned int tessalationShaderID = 0;
|
||
|
|
std::unordered_map<std::string, IntDefaultedToMinusOne> uniformVars;
|
||
|
|
static unsigned int loadShader(const std::string &file, int type);
|
||
|
|
// loads from a string rather than a file!
|
||
|
|
static unsigned int loadShaderString(const std::string &str, int type);
|
||
|
|
GLint getUniformLocation(const std::string &name);
|
||
|
|
static void checkCompileErrors(unsigned int shader, const std::string& type, const std::string& shaderPath);
|
||
|
|
public:
|
||
|
|
Shader(const std::string& vertex, const std::string& fragment, bool loadString = false);
|
||
|
|
Shader(const std::string& vertex, const std::string& geometry, const std::string& fragment, bool loadString = false);
|
||
|
|
// used to set the location of VAOs to the in variables in opengl shaders.
|
||
|
|
void bindAttribute(int attribute, const std::string& name);
|
||
|
|
// used to set location of shared UBOs
|
||
|
|
void setUniformBlockLocation(const std::string& name, int location);
|
||
|
|
// set various data-types.
|
||
|
|
void setBool(const std::string &name, bool value);
|
||
|
|
void setInt(const std::string &name, int value);
|
||
|
|
void setFloat(const std::string &name, float value);
|
||
|
|
void setMatrix(const std::string &name, Mat4x4& matrix);
|
||
|
|
void setVec4(const std::string &name, const Vec4& vec);
|
||
|
|
void setVec3(const std::string &name, const Vec4& vec);
|
||
|
|
void setVec2(const std::string &name, float x, float y);
|
||
|
|
void setVec3(const std::string &name, float x, float y, float z);
|
||
|
|
void setVec4(const std::string &name, float x, float y, float z, float w);
|
||
|
|
void use();
|
||
|
|
~Shader();
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif //STEP_3_SHADER_H
|