f5fd5b6756
Added Light Base Class Added AmbientLight, DirectionalLight and PointLight Classes Added Constructor to the Camera Class Added Light CoEff's to the Model Class Added Color Variables to Polygon3D Class Added Light Vector to hold the lights in the Rasteriser Added Camera Vector to hold multiple Cameras and Methods to set which is the current Added Lighting to the Rasterizer Added DrawSolidFlat method to the Rastorizer Added Bounds Check to the SharedTools for Int and Float values Added Color Enum Class Added Normalize Method to the Vector3D Class Renamed the TransformTools to SharedTools since adding more non transform methods to it
118 lines
3.5 KiB
C++
118 lines
3.5 KiB
C++
#include "SharedTools.h"
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int SharedTools::BoundsCheck(int min, int max, int value)
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{
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int result = value;
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if (value < min)
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{
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result = min;
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}
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else if (value > max)
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{
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result = max;
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}
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return result;
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}
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float SharedTools::BoundsCheck(float min, float max, float value)
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{
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float result = value;
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if (value < min)
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{
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result = min;
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}
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else if (value > max)
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{
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result = max;
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}
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return result;
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}
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Matrix SharedTools::GetTranslateMatrix(const float x, const float y, const float z)
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{
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return Matrix({ 1, 0, 0, x, 0, 1, 0, y, 0, 0, 1, z, 0, 0, 0, 1 });
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}
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Matrix SharedTools::GetTranslateMatrix(const Vertex& position)
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{
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return GetTranslateMatrix(position.GetX(), position.GetY(), position.GetZ());
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}
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Matrix SharedTools::GetScaleMatrix(const float x, const float y, const float z)
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{
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return Matrix({ x, 0, 0, 0, 0, y, 0, 0, 0, 0, z, 0, 0, 0, 0, 1 });
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}
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Matrix SharedTools::GetRotationMatrix(const Axis rotAxis, const float rotDegrees)
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{
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float rotationRadian = DegreesToRadians(rotDegrees);
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switch (rotAxis)
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{
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case (Axis::X):
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return Matrix({ 1, 0, 0, 0, 0, cos(rotationRadian), -sin(rotationRadian), 0, 0, sin(rotationRadian), cos(rotationRadian), 0, 0, 0, 0, 1 });
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case (Axis::Y):
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return Matrix({ cos(rotationRadian), 0, sin(rotationRadian), 0, 0, 1, 0, 0, -sin(rotationRadian), 0, cos(rotationRadian), 0, 0, 0, 0, 1 });
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case (Axis::Z):
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return Matrix({ cos(rotationRadian), -sin(rotationRadian), 0, 0, sin(rotationRadian), cos(rotationRadian), 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 });
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default:
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throw "Invalid axis selected";
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}
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}
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Matrix SharedTools::GetRotationMatrixFromPoint(const Axis rotAxis, const float rotDegrees, const float x, const float y, const float z)
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{
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return GetTranslateMatrix(x, y, z) * GetRotationMatrix(rotAxis, rotDegrees) * GetTranslateMatrix(-x, -y, -z);
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}
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float SharedTools::DegreesToRadians(const float degrees)
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{
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return (degrees * PI) / 180;
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}
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Matrix SharedTools::GetOrthegraphicProjectionMatrix(float d)
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{
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return Matrix({ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, d, 0, 0, 0, 1 });
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}
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Matrix SharedTools::GetPerspectiveProjectionMatrix(float d, float aspectRatio)
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{
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float distanceAspect = d / aspectRatio;
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return Matrix({ distanceAspect, 0, 0, 0, 0, d, 0, 0, 0, 0, d, 0, 0, 0, 1, 0 });
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}
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Matrix SharedTools::GetViewMatrix(float d, int width, int height)
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{
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float widthCenter = (float) width / 2.0f;
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float heightCenter = (float) height / 2.0f;
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float distanceCenter = (float) d / 2.0f;
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return Matrix({ widthCenter, 0, 0, widthCenter, 0, -heightCenter, 0, heightCenter, 0, 0, distanceCenter, distanceCenter, 0, 0, 0, 1 });
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}
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Matrix SharedTools::GetCameraTranslateMatrix(const float x, const float y, const float z)
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{
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return Matrix({ 1, 0, 0, -x, 0, 1, 0, -y, 0, 0, 1, -z, 0, 0, 0, 1 });
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}
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Matrix SharedTools::GetCameraTranslateMatrix(const Vertex& position)
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{
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return GetCameraTranslateMatrix(position.GetX(), position.GetY(), position.GetZ());
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}
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Matrix SharedTools::GetCameraRotationMatrix(const Axis rotAxis, const float rotDegrees)
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{
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float rotationRadian = DegreesToRadians(rotDegrees);
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switch (rotAxis)
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{
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case (Axis::X):
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return Matrix({ 1, 0, 0, 0, 0, cos(rotationRadian), sin(rotationRadian), 0, 0, -sin(rotationRadian), cos(rotationRadian), 0, 0, 0, 0, 1 });
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case (Axis::Y):
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return Matrix({ cos(rotationRadian), 0, -sin(rotationRadian), 0, 0, 1, 0, 0, sin(rotationRadian), 0, cos(rotationRadian), 0, 0, 0, 0, 1 });
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case (Axis::Z):
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return Matrix({ cos(rotationRadian), sin(rotationRadian), 0, 0, -sin(rotationRadian), cos(rotationRadian), 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 });
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default:
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throw "Invalid axis selected";
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}
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} |