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Smooth triangles! And support for them in the OBJ File parser.

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Also add an interesting tea party scene!
This commit is contained in:
Godzil
2020-03-06 15:07:26 +00:00
parent 73012b6dd1
commit e57b5715e8
38 changed files with 705 additions and 75 deletions
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2
source/include/cone.h
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@@ -19,7 +19,7 @@ class Cone : public Shape {
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
bool checkCap(Ray r, double t, double y);
void intersectCaps(Ray r, Intersect &xs);

4
source/include/cube.h
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@@ -16,12 +16,12 @@
#include <stdio.h>
class Cube : public Shape {
private:
protected:
void checkAxis(double axeOrigin, double axeDirection, double *axeMin, double *axeMax);
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
Cube() : Shape(SHAPE_CUBE) { stats.addCube(); };

5
source/include/cylinder.h
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@@ -16,10 +16,11 @@
#include <stdio.h>
class Cylinder : public Shape {
private:
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
bool checkCap(Ray r, double t);
void intersectCaps(Ray r, Intersect &xs);

2
source/include/group.h
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@@ -27,7 +27,7 @@ private:
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
BoundingBox bounds;

4
source/include/intersection.h
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@@ -74,8 +74,10 @@ public:
double t;
Shape *object;
double u, v;
public:
Intersection(double t, Shape *object) : t(t), object(object) { stats.addIntersection(); };
Intersection(double t, Shape *object, double u = NAN, double v = NAN) : t(t), object(object), u(u), v(v) { stats.addIntersection(); };
bool nothing() { return (this->object == nullptr); };
Computation prepareComputation(Ray r, Intersect *xs = nullptr);

8
source/include/objfile.h
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@@ -26,9 +26,13 @@ private:
Point* *vertexList;
uint32_t vertexCount;
uint32_t allocatedVertexNormalCount;
Vector* *vertexNormalList;
uint32_t vertexNormalCount;
private:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
/* Some stats */
@@ -37,6 +41,7 @@ public:
protected:
void addGroup(Group *group);
void addVertex(Point *vertex);
void addVertexNormal(Vector *vertexNormal);
void parseLine(char *line, uint32_t currentLine);
int execLine(int argc, char *argv[], uint32_t currentLine);
@@ -50,6 +55,7 @@ public:
/* OBJ file expect the first vertice to be 1 and not 0 */
Point vertices(uint32_t i) { return *this->vertexList[i - 1]; };
Vector verticesNormal(uint32_t i) { return *this->vertexNormalList[i - 1]; };
Group *groups(uint32_t i) { return this->faceGroupList[i]; };
Intersect intersect(Ray r);
BoundingBox getLocalBounds();

4
source/include/plane.h
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@@ -13,9 +13,9 @@
class Plane : public Shape
{
private:
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
Plane() : Shape(SHAPE_PLANE) { stats.addPlane(); };

23
source/include/renderstat.h
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@@ -14,15 +14,16 @@
class RenderStats
{
private:
uint64_t coneCount; /* Total number of cones */
uint64_t cylinderCount; /* Total number of cylinder */
uint64_t cubeCount; /* Total number of cubes */
uint64_t groupCount; /* Total number of groups */
uint64_t lightCount; /* Total number of light */
uint64_t planeCount; /* Total number of plane */
uint64_t sphereCount; /* Total number of sphere */
uint64_t triangleCount; /* Total number of triangle */
uint64_t objfileCount; /* Total number of OBJ File */
uint64_t coneCount; /* Total number of cones */
uint64_t cylinderCount; /* Total number of cylinder */
uint64_t cubeCount; /* Total number of cubes */
uint64_t groupCount; /* Total number of groups */
uint64_t lightCount; /* Total number of light */
uint64_t planeCount; /* Total number of plane */
uint64_t sphereCount; /* Total number of sphere */
uint64_t triangleCount; /* Total number of triangle */
uint64_t smoothTriangleCount; /* Total number of smooth triangle */
uint64_t objfileCount; /* Total number of OBJ File */
uint64_t pixelCount; /* Total number of rendered pixels */
uint64_t rayCount; /* Total number of rays */
@@ -40,7 +41,7 @@ private:
public:
RenderStats() : coneCount(0), cylinderCount(0), cubeCount(0), groupCount(0), lightCount(0), planeCount(0), sphereCount(0), triangleCount(0),
pixelCount(0), rayCount(0), lightRayEmitedCount(0), reflectionRayCount(0), refractedRayCount(0),
intersectCount(0), intersectionCount(0), reallocCallCount(0), mallocCallCount(0),
intersectCount(0), intersectionCount(0), reallocCallCount(0), mallocCallCount(0), smoothTriangleCount(0),
discardedIntersectCount(0), maxDepthAttained(UINT64_MAX), maxIntersectOnARay(0), objfileCount(0) {};
#ifdef RENDER_STATS
void addCone();
@@ -52,6 +53,7 @@ public:
void addSphere();
void addOBJFile();
void addTriangle();
void addSmoothTriangle();
void printStats();
void addPixel();
void addRay();
@@ -74,6 +76,7 @@ public:
static void addPlane() {};
static void addSphere() {};
static void addTriangle() {};
static void addSmoothTriangle() {};
static void printStats() {};
static void addPixel() {};
static void addRay() {};

9
source/include/shape.h
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@@ -30,17 +30,19 @@ enum ShapeType
SHAPE_GROUP,
SHAPE_TRIANGLE,
SHAPE_OBJFILE,
SHAPE_SMOOTHTRIANGLE,
};
/* Base class for all object that can be presented in the world */
class Shape
{
private:
protected:
ShapeType type;
Matrix localTransformMatrix;
protected:
virtual Intersect localIntersect(Ray r) = 0;
virtual Tuple localNormalAt(Tuple point) = 0;
virtual Tuple localNormalAt(Tuple point, Intersection *hit) = 0;
public:
Matrix transformMatrix;
@@ -50,13 +52,14 @@ public:
Material material;
bool dropShadow;
Shape *parent;
bool materialSet;
public:
Shape(ShapeType = SHAPE_NONE);
virtual Intersect intersect(Ray r);
virtual Intersect intersectOOB(Ray r) { return this->intersect(r); };
Tuple normalAt(Tuple point);
Tuple normalAt(Tuple point, Intersection *hit = nullptr);
/* Bounding box points are always world value */
virtual BoundingBox getLocalBounds();

28
source/include/smoothtriangle.h Normal file
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@@ -0,0 +1,28 @@
/*
* DoRayMe - a quick and dirty Raytracer
* Smooth Triangle header
*
* Created by Manoël Trapier
* Copyright (c) 2020 986-Studio.
*
*/
#ifndef DORAYME_SMOOTHTRIANGLE_H
#define DORAYME_SMOOTHTRIANGLE_H
#include <triangle.h>
class SmoothTriangle : public Triangle
{
public:
Vector n1;
Vector n2;
Vector n3;
protected:
Tuple localNormalAt(Tuple point, Intersection *hit);
public:
SmoothTriangle(Point p1, Point p2, Point p3, Vector n1, Vector n2, Vector n3);
};
#endif /* DORAYME_SMOOTHTRIANGLE_H */

2
source/include/sphere.h
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@@ -19,7 +19,7 @@ class Sphere : public Shape
{
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
Sphere() : Shape(SHAPE_SPHERE) { stats.addSphere(); };

2
source/include/testshape.h
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@@ -17,7 +17,7 @@ class TestShape : public Shape
{
private:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
Ray localRay;

3
source/include/triangle.h
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@@ -14,8 +14,9 @@
class Triangle : public Shape
{
protected:
Intersect localIntersect(Ray r);
Tuple localNormalAt(Tuple point);
Tuple localNormalAt(Tuple point, Intersection *hit = nullptr);
public:
Tuple p1, p2, p3;