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voxel-raycaster
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Turned off experimental phong lighting in the kernel

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fixed all compiler errors thrown by MSVC
Switched experimental octree map back to the old map
Refactored old map system, prettied it up
master
MitchellHansen 8 years ago
parent 391dc63ec8
commit 561c07c602
11 changed files with 642 additions and 339 deletions
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4
include/Camera.h
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@ -31,8 +31,8 @@ public:
private: private:
float friction_coefficient = 0.1; float friction_coefficient = 0.1f;
float default_impulse = 1.0; float default_impulse = 1.0f;
// 3D vector // 3D vector
sf::Vector3f movement; sf::Vector3f movement;

42
include/Old_map.h
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@ -0,0 +1,42 @@
#pragma once
#include <SFML/System/Vector3.hpp>
#include <SFML/System/Vector2.hpp>
#include <SFML/Graphics/Color.hpp>
#include <random>
#include <iostream>
#include <functional>
#include <cmath>
#define _USE_MATH_DEFINES
#include <math.h>
#include <deque>
class Old_Map {
public:
Old_Map(sf::Vector3i dim);
~Old_Map();
void generate_terrain();
sf::Vector3i getDimensions();
char* get_voxel_data();
protected:
private:
double* height_map;
char *voxel_data;
sf::Vector3i dimensions;
void set_voxel(sf::Vector3i position, int val);
double sample(int x, int y);
void set_sample(int x, int y, double value);
void sample_square(int x, int y, int size, double value);
void sample_diamond(int x, int y, int size, double value);
void diamond_square(int stepsize, double scale);
};

2
include/Renderer.h
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@ -36,7 +36,7 @@ public:
private: private:
CL_Wrapper *cl; CL_Wrapper *cl;
bool sharing_supported = False; bool sharing_supported = false;
sf::Uint8 *drawing_surface; sf::Uint8 *drawing_surface;
sf::RenderWindow* window; sf::RenderWindow* window;

6
include/util.hpp
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@ -64,7 +64,7 @@ public:
else { else {
t.setFont(f); t.setFont(f);
t.setCharacterSize(20); t.setCharacterSize(20);
t.setPosition(20, slot * pixel_spacing); t.setPosition(static_cast<float>(20), static_cast<float>(slot * pixel_spacing));
} }
} }
@ -140,11 +140,11 @@ inline float AngleBetweenVectors(sf::Vector3f a, sf::Vector3f b){
} }
inline float DegreesToRadians(float in) { inline float DegreesToRadians(float in) {
return in * PI / 180.0f; return static_cast<float>(in * PI / 180.0f);
} }
inline float RadiansToDegrees(float in) { inline float RadiansToDegrees(float in) {
return in * 180.0f / PI; return static_cast<float>(in * 180.0f / PI);
} }
inline std::string read_file(std::string file_name){ inline std::string read_file(std::string file_name){

20
kernels/ray_caster_kernel.cl
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@ -16,7 +16,13 @@ float4 white_light(float4 input, float3 light, int3 mask) {
// 0 1 2 3 4 5 6 7 8 9 // 0 1 2 3 4 5 6 7 8 9
// {r, g, b, i, x, y, z, x', y', z'} // {r, g, b, i, x, y, z, x', y', z'}
float4 cast_light_rays(float3 eye_direction, float3 ray_origin, float4 voxel_color, float3 voxel_normal, global float* lights, global int* light_count) { float4 cast_light_rays(
float3 eye_direction,
float3 ray_origin,
float4 voxel_color,
float3 voxel_normal,
global float* lights,
global int* light_count) {
// set the ray origin to be where the initial ray intersected the voxel // set the ray origin to be where the initial ray intersected the voxel
// which side z, and the x and y position // which side z, and the x and y position
@ -183,10 +189,10 @@ __kernel void min_kern(
write_imagef(image, pixel, (float4)(.25, .00, .25, 1.00)); write_imagef(image, pixel, (float4)(.25, .00, .25, 1.00));
return; return;
case 5: case 5:
{
//write_imagef(image, pixel, (float4)(.00, .00, + 0.5, 1.00));
//write_imagef(image, pixel, white_light((float4)(.35, .00, ((1.0 - 0) / (128 - 0) * (voxel.z - 128)) + 1, 0.2), (float3)(lights[7], lights[8], lights[9]), mask));
//write_imagef(image, pixel, (float4)(.00, .00, + 0.5, 1.00));
write_imagef(image, pixel, white_light((float4)(.35, .00, ((1.0 - 0) / (128 - 0) * (voxel.z - 128)) + 1, 0.2), (float3)(lights[7], lights[8], lights[9]), mask));
return;
float3 vox = convert_float3(voxel); float3 vox = convert_float3(voxel);
float3 norm = normalize(convert_float3(mask) * convert_float3(voxel_step)); float3 norm = normalize(convert_float3(mask) * convert_float3(voxel_step));
@ -204,13 +210,13 @@ __kernel void min_kern(
)); ));
return; return;
}
case 6: case 6:
write_imagef(image, pixel, (float4)(.30, .80, .10, 1.00)); write_imagef(image, pixel, (float4)(.30, .80, .10, 1.00));
return; return;
default: default:
write_imagef(image, pixel, (float4)(.30, .80, .10, 1.00)); //write_imagef(image, pixel, (float4)(.30, .10, .10, 1.00));
return; continue;
} }
} }

32
notes/notes.cpp
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@ -0,0 +1,32 @@
// TODO
/*
OpenCL:
- Add phong lighting / fix the current implementation
- Switch to switch lighting models
- Separate out into a part of the rendering module
Map:
- Reimplement the old map, put it into an old_map structure
- Implement the new octree structure
- storing the pre-octree volumetric data
- determining when to load volumetric data into the in-memory structure
- building the octree from that raw volumetric data
- combining with other octree nodes to allow streaming of leafs
- passing that data into the renderer
- renderer needs to then traverse the octree
- Terrain generation for real this time
- Loader of 3rd party voxel data
Renderer:
- Determine when to switch between the cpu and gpu rendering
- call to the map to make sure that the gpu/cpu has an up to date copy
of the volumetric data
*/

10
src/Camera.cpp
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@ -34,22 +34,22 @@ int Camera::add_relative_impulse(DIRECTION impulse_direction, float speed) {
switch (impulse_direction) { switch (impulse_direction) {
case DIRECTION::UP: case DIRECTION::UP:
dir = sf::Vector2f(direction.y, direction.x + PI); dir = sf::Vector2f(direction.y, direction.x + PI_F);
break; break;
case DIRECTION::DOWN: case DIRECTION::DOWN:
dir = sf::Vector2f(direction.y, direction.x); dir = sf::Vector2f(direction.y, direction.x);
break; break;
case DIRECTION::LEFT: case DIRECTION::LEFT:
dir = sf::Vector2f(direction.y + PI + PI / 2, PI / 2); dir = sf::Vector2f(direction.y + PI_F + PI_F / 2, PI_F / 2);
break; break;
case DIRECTION::RIGHT: case DIRECTION::RIGHT:
dir = sf::Vector2f(direction.y + PI / 2, PI / 2); dir = sf::Vector2f(direction.y + PI_F / 2, PI_F / 2);
break; break;
case DIRECTION::FORWARD: case DIRECTION::FORWARD:
dir = sf::Vector2f(direction.y, direction.x + PI / 2); dir = sf::Vector2f(direction.y, direction.x + PI_F / 2);
break; break;
case DIRECTION::REARWARD: case DIRECTION::REARWARD:
dir = sf::Vector2f(direction.y + PI, (direction.x * -1) + PI / 2 ); dir = sf::Vector2f(direction.y + PI_F, (direction.x * -1) + PI_F / 2 );
break; break;
} }

32
src/Map.cpp
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@ -27,30 +27,30 @@ struct block {
void Map::generate_octree() { void Map::generate_octree() {
char* arr[8192]; char* arr[8192];
for (int i = 0; i < 8192; i++) { for (int i = 0; i < 8192; i++) {
arr[i] = 0; arr[i] = 0;
} }
int* dataset = new int[32 * 32 * 32]; int* dataset = new int[32 * 32 * 32];
for (int i = 0; i < 32 * 32 * 32; i++) { for (int i = 0; i < 32 * 32 * 32; i++) {
dataset[0] = i; dataset[0] = i;
} }
int level = log2(32); int level = static_cast<int>(log2(32));
leaf top_node; leaf top_node;
top_node.level = level; top_node.level = level;
for (int i = 0; i < 16 * 16 * 16; i++){ for (int i = 0; i < 16 * 16 * 16; i++) {
for (int i = 0; i < 8 * 8 * 8; i++){ for (int i = 0; i < 8 * 8 * 8; i++) {
for (int i = 0; i < 4 * 4 * 4; i++){ for (int i = 0; i < 4 * 4 * 4; i++) {
for (int i = 0; i < 2 * 2 * 2; i++){ for (int i = 0; i < 2 * 2 * 2; i++) {
} }
} }
} }
} }
@ -73,7 +73,7 @@ void Map::generate_octree() {
std::cout << BitCount(parent & leafmask); std::cout << BitCount(parent & leafmask);
unsigned int children[8] = {0, 0, 0, 0, 0, 0, 0, 0}; unsigned int children[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
} }

225
src/Old_map.cpp
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@ -0,0 +1,225 @@
#pragma once
#include <iostream>
#include <SFML/System/Vector3.hpp>
#include <SFML/System/Vector2.hpp>
#include "util.hpp"
#include <Old_map.h>
Old_Map::Old_Map(sf::Vector3i dim) {
dimensions = dim;
}
Old_Map::~Old_Map() {
}
void Old_Map::generate_terrain() {
std::mt19937 gen;
std::uniform_real_distribution<double> dis(-1.0, 1.0);
auto f_rand = std::bind(dis, gen);
voxel_data = new char[dimensions.x * dimensions.y * dimensions.z];
height_map = new double[dimensions.x * dimensions.y];
for (int i = 0; i < dimensions.x * dimensions.y * dimensions.z; i++) {
voxel_data[i] = 0;
}
for (int i = 0; i < dimensions.x * dimensions.y; i++) {
height_map[i] = 0;
}
//size of grid to generate, note this must be a
//value 2^n+1
int DATA_SIZE = dimensions.x + 1;
//an initial seed value for the corners of the data
double SEED = rand() % 25 + 25;
//seed the data
set_sample(0, 0, SEED);
set_sample(0, dimensions.y, SEED);
set_sample(dimensions.x, 0, SEED);
set_sample(dimensions.x, dimensions.y, SEED);
double h = 30.0;//the range (-h -> +h) for the average offset
//for the new value in range of h
//side length is distance of a single square side
//or distance of diagonal in diamond
for (int sideLength = DATA_SIZE - 1;
//side length must be >= 2 so we always have
//a new value (if its 1 we overwrite existing values
//on the last iteration)
sideLength >= 2;
//each iteration we are looking at smaller squares
//diamonds, and we decrease the variation of the offset
sideLength /= 2, h /= 2.0) {
//half the length of the side of a square
//or distance from diamond center to one corner
//(just to make calcs below a little clearer)
int halfSide = sideLength / 2;
//generate the new square values
for (int x = 0; x < DATA_SIZE - 1; x += sideLength) {
for (int y = 0; y < DATA_SIZE - 1; y += sideLength) {
//x, y is upper left corner of square
//calculate average of existing corners
double avg = sample(x, y) + //top left
sample(x + sideLength, y) +//top right
sample(x, y + sideLength) + //lower left
sample(x + sideLength, y + sideLength);//lower right
avg /= 4.0;
//center is average plus random offset
set_sample(x + halfSide, y + halfSide,
//We calculate random value in range of 2h
//and then subtract h so the end value is
//in the range (-h, +h)
avg + (f_rand() * 2 * h) - h);
}
}
//generate the diamond values
//since the diamonds are staggered we only move x
//by half side
//NOTE: if the data shouldn't wrap then x < DATA_SIZE
//to generate the far edge values
for (int x = 0; x < DATA_SIZE - 1; x += halfSide) {
//and y is x offset by half a side, but moved by
//the full side length
//NOTE: if the data shouldn't wrap then y < DATA_SIZE
//to generate the far edge values
for (int y = (x + halfSide) % sideLength; y < DATA_SIZE - 1; y += sideLength) {
//x, y is center of diamond
//note we must use mod and add DATA_SIZE for subtraction
//so that we can wrap around the array to find the corners
double avg =
sample((x - halfSide + DATA_SIZE) % DATA_SIZE, y) + //left of center
sample((x + halfSide) % DATA_SIZE, y) + //right of center
sample(x, (y + halfSide) % DATA_SIZE) + //below center
sample(x, (y - halfSide + DATA_SIZE) % DATA_SIZE); //above center
avg /= 4.0;
//new value = average plus random offset
//We calculate random value in range of 2h
//and then subtract h so the end value is
//in the range (-h, +h)
avg = avg + (f_rand() * 2 * h) - h;
//update value for center of diamond
set_sample(x, y, avg);
//wrap values on the edges, remove
//this and adjust loop condition above
//for non-wrapping values.
if (x == 0) set_sample(DATA_SIZE - 1, y, avg);
if (y == 0) set_sample(x, DATA_SIZE - 1, avg);
}
}
}
for (int x = 0; x < dimensions.x; x++) {
for (int y = 0; y < dimensions.y; y++) {
if (height_map[x + y * dimensions.x] > 0) {
int z = static_cast<int>(height_map[x + y * dimensions.x]);
while (z > 0) {
voxel_data[x + dimensions.x * (y + dimensions.z * z)] = 5;
z--;
}
}
}
}
for (int x = 0; x < dimensions.x / 10; x++) {
for (int y = 0; y < dimensions.y / 10; y++) {
for (int z = 0; z < dimensions.z; z++) {
if (rand() % 1000 < 1)
voxel_data[x + dimensions.x * (y + dimensions.z * z)] = rand() % 6;
}
}
}
}
void Old_Map::set_voxel(sf::Vector3i position, int val) {
voxel_data[position.x + dimensions.x * (position.y + dimensions.z * position.z)] = val;
}
sf::Vector3i Old_Map::getDimensions() {
return dimensions;
}
char* Old_Map::get_voxel_data() {
return voxel_data;
}
double Old_Map::sample(int x, int y) {
return height_map[(x & (dimensions.x - 1)) + (y & (dimensions.y - 1)) * dimensions.x];
}
void Old_Map::set_sample(int x, int y, double value) {
height_map[(x & (dimensions.x - 1)) + (y & (dimensions.y - 1)) * dimensions.x] = value;
}
void Old_Map::sample_square(int x, int y, int size, double value) {
int hs = size / 2;
// a b
//
// x
//
// c d
double a = sample(x - hs, y - hs);
double b = sample(x + hs, y - hs);
double c = sample(x - hs, y + hs);
double d = sample(x + hs, y + hs);
set_sample(x, y, ((a + b + c + d) / 4.0) + value);
}
void Old_Map::sample_diamond(int x, int y, int size, double value) {
int hs = size / 2;
// c
//
//a x b
//
// d
double a = sample(x - hs, y);
double b = sample(x + hs, y);
double c = sample(x, y - hs);
double d = sample(x, y + hs);
set_sample(x, y, ((a + b + c + d) / 4.0) + value);
}
void Old_Map::diamond_square(int stepsize, double scale) {
std::mt19937 generator;
std::uniform_real_distribution<double> uniform_distribution(-1.0, 1.0);
auto f_rand = std::bind(uniform_distribution, std::ref(generator));
int halfstep = stepsize / 2;
for (int y = halfstep; y < dimensions.y + halfstep; y += stepsize) {
for (int x = halfstep; x < dimensions.x + halfstep; x += stepsize) {
sample_square(x, y, stepsize, f_rand() * scale);
}
}
for (int y = 0; y < dimensions.y; y += stepsize) {
for (int x = 0; x < dimensions.x; x += stepsize) {
sample_diamond(x + halfstep, y, stepsize, f_rand() * scale);
sample_diamond(x, y + halfstep, stepsize, f_rand() * scale);
}
}
}

12
src/Ray.cpp
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@ -30,9 +30,9 @@ sf::Color Ray::Cast() {
// Setup the voxel coords from the camera origin // Setup the voxel coords from the camera origin
voxel = sf::Vector3<int>( voxel = sf::Vector3<int>(
floorf(origin.x), static_cast<int>(floorf(origin.x)),
floorf(origin.y), static_cast<int>(floorf(origin.y)),
floorf(origin.z) static_cast<int>(floorf(origin.z))
); );
// Delta T is the units a ray must travel along an axis in order to // Delta T is the units a ray must travel along an axis in order to
@ -113,18 +113,18 @@ sf::Color Ray::Cast() {
if (face == 0) { if (face == 0) {
alpha = AngleBetweenVectors(sf::Vector3f(1, 0, 0), map->global_light); alpha = AngleBetweenVectors(sf::Vector3f(1, 0, 0), map->global_light);
alpha = fmod(alpha, 0.785) * 2; alpha = static_cast<float>(fmod(alpha, 0.785) * 2);
} else if (face == 1) { } else if (face == 1) {
alpha = AngleBetweenVectors(sf::Vector3f(0, 1, 0), map->global_light); alpha = AngleBetweenVectors(sf::Vector3f(0, 1, 0), map->global_light);
alpha = fmod(alpha, 0.785) * 2; alpha = static_cast<float>(fmod(alpha, 0.785) * 2);
} else if (face == 2){ } else if (face == 2){
//alpha = 1.57 / 2; //alpha = 1.57 / 2;
alpha = AngleBetweenVectors(sf::Vector3f(0, 0, 1), map->global_light); alpha = AngleBetweenVectors(sf::Vector3f(0, 0, 1), map->global_light);
alpha = fmod(alpha, 0.785) * 2; alpha = static_cast<float>(fmod(alpha, 0.785) * 2);
} }
alpha *= 162; alpha *= 162;

592
src/main.cpp
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@ -1,9 +1,3 @@
#include <iostream>
#include <chrono>
#include <fstream>
#include <sstream>
#include <SFML/Graphics.hpp>
#ifdef linux #ifdef linux
#include <CL/cl.h> #include <CL/cl.h>
#include <CL/opencl.h> #include <CL/opencl.h>
@ -25,7 +19,14 @@
#include <OpenCL/cl_ext.h> #include <OpenCL/cl_ext.h>
#endif #endif
#include "Map.h"
#include <iostream>
#include <chrono>
#include <fstream>
#include <sstream>
#include <SFML/Graphics.hpp>
#include "Old_Map.h"
#include "Curses.h" #include "Curses.h"
#include "util.hpp" #include "util.hpp"
#include "RayCaster.h" #include "RayCaster.h"
@ -52,7 +53,7 @@ float elap_time(){
std::chrono::time_point<std::chrono::system_clock> now = std::chrono::system_clock::now(); std::chrono::time_point<std::chrono::system_clock> now = std::chrono::system_clock::now();
std::chrono::duration<double> elapsed_time = now - start; std::chrono::duration<double> elapsed_time = now - start;
return elapsed_time.count(); return static_cast<float>(elapsed_time.count());
} }
sf::Sprite window_sprite; sf::Sprite window_sprite;
@ -64,299 +65,296 @@ sf::Texture window_texture;
int main() { int main() {
sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "SFML");
CL_Wrapper c; CL_Wrapper c;
//Map m(sf::Vector3i (50, 50, 50)); if (c.compile_kernel("../kernels/ray_caster_kernel.cl", true, "min_kern") < 0) {
//m.generate_octree(); std::cin.get();
return 1; return -1;
}
//sf::RenderWindow window(sf::VideoMode(WINDOW_X, WINDOW_Y), "SFML");
std::cout << "map...";
//if (c.compile_kernel("../kernels/ray_caster_kernel.cl", true, "min_kern") < 0) { sf::Vector3i map_dim(MAP_X, MAP_Y, MAP_Z);
// std::cin.get(); Old_Map* map = new Old_Map(map_dim);
// return -1; map->generate_terrain();
//}
// c.create_buffer("map_buffer", sizeof(char) * map_dim.x * map_dim.y * map_dim.z, map->get_voxel_data());
//std::cout << "map..."; c.create_buffer("dim_buffer", sizeof(int) * 3, &map_dim);
// sf::Vector3i map_dim(MAP_X, MAP_Y, MAP_Z);
// Map* map = new Map(map_dim); sf::Vector2i view_res(WINDOW_X, WINDOW_Y);
// c.create_buffer("res_buffer", sizeof(int) * 2, &view_res);
//c.create_buffer("map_buffer", sizeof(char) * map_dim.x * map_dim.y * map_dim.z, map->list);
//c.create_buffer("dim_buffer", sizeof(int) * 3, &map_dim);
double y_increment_radians = DegreesToRadians(50.0f / view_res.y);
//sf::Vector2i view_res(WINDOW_X, WINDOW_Y); double x_increment_radians = DegreesToRadians(80.0f / view_res.x);
//c.create_buffer("res_buffer", sizeof(int) * 2, &view_res);
// std::cout << "view matrix...";
// double y_increment_radians = DegreesToRadians(50.0 / view_res.y); sf::Vector4f* view_matrix = new sf::Vector4f[WINDOW_X * WINDOW_Y * 4];
// double x_increment_radians = DegreesToRadians(80.0 / view_res.x);
for (int y = -view_res.y / 2; y < view_res.y / 2; y++) {
//std::cout << "view matrix..."; for (int x = -view_res.x / 2; x < view_res.x / 2; x++) {
//
//sf::Vector4f* view_matrix = new sf::Vector4f[WINDOW_X * WINDOW_Y * 4]; // The base ray direction to slew from
sf::Vector3f ray(1, 0, 0);
// for (int y = -view_res.y / 2; y < view_res.y / 2; y++) {
// for (int x = -view_res.x / 2; x < view_res.x / 2; x++) { // Y axis, pitch
ray = sf::Vector3f(
// // The base ray direction to slew from static_cast<float>(ray.z * sin(y_increment_radians * y) + ray.x * cos(y_increment_radians * y)),
// sf::Vector3f ray(1, 0, 0); static_cast<float>(ray.y),
static_cast<float>(ray.z * cos(y_increment_radians * y) - ray.x * sin(y_increment_radians * y))
// // Y axis, pitch );
// ray = sf::Vector3f(
// ray.z * sin(y_increment_radians * y) + ray.x * cos(y_increment_radians * y),
// ray.y, // Z axis, yaw
// ray.z * cos(y_increment_radians * y) - ray.x * sin(y_increment_radians * y) ray = sf::Vector3f(
// ); static_cast<float>(ray.x * cos(x_increment_radians * x) - ray.y * sin(x_increment_radians * x)),
static_cast<float>(ray.x * sin(x_increment_radians * x) + ray.y * cos(x_increment_radians * x)),
static_cast<float>(ray.z)
// // Z axis, yaw );
// ray = sf::Vector3f(
// ray.x * cos(x_increment_radians * x) - ray.y * sin(x_increment_radians * x), int index = (x + view_res.x / 2) + view_res.x * (y + view_res.y / 2);
// ray.x * sin(x_increment_radians * x) + ray.y * cos(x_increment_radians * x), ray = Normalize(ray);
// ray.z
// ); view_matrix[index] = sf::Vector4f(
// ray.x,
// int index = (x + view_res.x / 2) + view_res.x * (y + view_res.y / 2); ray.y,
// ray = Normalize(ray); ray.z,
0
// view_matrix[index] = sf::Vector4f( );
// ray.x, }
// ray.y, }
// ray.z,
// 0 c.create_buffer("view_matrix_buffer", sizeof(float) * 4 * view_res.x * view_res.y, view_matrix);
// );
// } Camera camera(
// } sf::Vector3f(70, 60, 50),
sf::Vector2f(0.0f, 1.00f)
//c.create_buffer("view_matrix_buffer", sizeof(float) * 4 * view_res.x * view_res.y, view_matrix); );
//Camera camera( c.create_buffer("cam_dir_buffer", sizeof(float) * 4, (void*)camera.get_direction_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
// sf::Vector3f(70, 60, 50), c.create_buffer("cam_pos_buffer", sizeof(float) * 4, (void*)camera.get_position_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
// sf::Vector2f(0.0f, 1.00f)
//); int light_count = 2;
// c.create_buffer("light_count_buffer", sizeof(int), &light_count);
//c.create_buffer("cam_dir_buffer", sizeof(float) * 4, (void*)camera.get_direction_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
//c.create_buffer("cam_pos_buffer", sizeof(float) * 4, (void*)camera.get_position_pointer(), CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR); // {r, g, b, i, x, y, z, x', y', z'}
// sf::Vector3f v = Normalize(sf::Vector3f(1.0f, 0.0f, 0.0f));
//int light_count = 2; sf::Vector3f v2 = Normalize(sf::Vector3f(1.1f, 0.4f, 0.7f));
//c.create_buffer("light_count_buffer", sizeof(int), &light_count); float light[] = { 0.4f, 0.8f, 0.1f, 1.0f, 50.0f, 50.0f, 50.0f, v.x, v.y, v.z,
0.4f, 0.8f, 0.1f, 1.0f, 50.0f, 50.0f, 50.0f, v2.x, v2.y, v2.z};
//// {r, g, b, i, x, y, z, x', y', z'} c.create_buffer("light_buffer", sizeof(float) * 10 * light_count, light, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR);
//sf::Vector3f v = Normalize(sf::Vector3f(1.0, 0.0, 0.0));
//sf::Vector3f v2 = Normalize(sf::Vector3f(1.1, 0.4, 0.7)); // The drawing canvas
//float light[] = { 0.4, 0.8, 0.1, 1, 50, 50, 50, v.x, v.y, v.z, unsigned char* pixel_array = new sf::Uint8[WINDOW_X * WINDOW_Y * 4];
// 0.4, 0.8, 0.1, 1, 50, 50, 50, v2.x, v2.y, v2.z};
//c.create_buffer("light_buffer", sizeof(float) * 10 * light_count, light, CL_MEM_READ_ONLY | CL_MEM_USE_HOST_PTR); for (int i = 0; i < WINDOW_X * WINDOW_Y * 4; i += 4) {
//// The drawing canvas pixel_array[i] = 255; // R?
// unsigned char* pixel_array = new sf::Uint8[WINDOW_X * WINDOW_Y * 4]; pixel_array[i + 1] = 255; // G?
pixel_array[i + 2] = 255; // B?
// for (int i = 0; i < WINDOW_X * WINDOW_Y * 4; i += 4) { pixel_array[i + 3] = 100; // A?
}
// pixel_array[i] = 255; // R?
// pixel_array[i + 1] = 255; // G? sf::Texture t;
// pixel_array[i + 2] = 255; // B? t.create(WINDOW_X, WINDOW_Y);
// pixel_array[i + 3] = 100; // A? t.update(pixel_array);
// }
int error;
//sf::Texture t; cl_mem image_buff = clCreateFromGLTexture(
// t.create(WINDOW_X, WINDOW_Y); c.getContext(), CL_MEM_WRITE_ONLY, GL_TEXTURE_2D,
// t.update(pixel_array); 0, t.getNativeHandle(), &error);
// int error; if (c.assert(error, "clCreateFromGLTexture"))
// cl_mem image_buff = clCreateFromGLTexture( return -1;
// c.getContext(), CL_MEM_WRITE_ONLY, GL_TEXTURE_2D,
// 0, t.getNativeHandle(), &error); c.store_buffer(image_buff, "image_buffer");
// if (c.assert(error, "clCreateFromGLTexture")) c.set_kernel_arg("min_kern", 0, "map_buffer");
// return -1; c.set_kernel_arg("min_kern", 1, "dim_buffer");
c.set_kernel_arg("min_kern", 2, "res_buffer");
// c.store_buffer(image_buff, "image_buffer"); c.set_kernel_arg("min_kern", 3, "view_matrix_buffer");
c.set_kernel_arg("min_kern", 4, "cam_dir_buffer");
// c.set_kernel_arg("min_kern", 0, "map_buffer"); c.set_kernel_arg("min_kern", 5, "cam_pos_buffer");
// c.set_kernel_arg("min_kern", 1, "dim_buffer"); c.set_kernel_arg("min_kern", 6, "light_buffer");
// c.set_kernel_arg("min_kern", 2, "res_buffer"); c.set_kernel_arg("min_kern", 7, "light_count_buffer");
// c.set_kernel_arg("min_kern", 3, "view_matrix_buffer"); c.set_kernel_arg("min_kern", 8, "image_buffer");
// c.set_kernel_arg("min_kern", 4, "cam_dir_buffer");
// c.set_kernel_arg("min_kern", 5, "cam_pos_buffer"); sf::Sprite s;
//c.set_kernel_arg("min_kern", 6, "light_buffer"); s.setTexture(t);
//c.set_kernel_arg("min_kern", 7, "light_count_buffer"); s.setPosition(0, 0);
//c.set_kernel_arg("min_kern", 8, "image_buffer");
// The step size in milliseconds between calls to Update()
//sf::Sprite s; // Lets set it to 16.6 milliseonds (60FPS)
//s.setTexture(t); float step_size = 0.0166f;
//s.setPosition(0, 0);
// Timekeeping values for the loop
// // The step size in milliseconds between calls to Update() double frame_time = 0.0,
// // Lets set it to 16.6 milliseonds (60FPS) elapsed_time = 0.0,
// float step_size = 0.0166f; delta_time = 0.0,
accumulator_time = 0.0,
// // Timekeeping values for the loop current_time = 0.0;
// double frame_time = 0.0,
// elapsed_time = 0.0, fps_counter fps;
// delta_time = 0.0,
// accumulator_time = 0.0, // ============================= RAYCASTER SETUP ==================================
// current_time = 0.0;
// Setup the sprite and texture
// fps_counter fps; window_texture.create(WINDOW_X, WINDOW_Y);
window_sprite.setPosition(0, 0);
//// ============================= RAYCASTER SETUP ==================================
// State values
//// Setup the sprite and texture
//window_texture.create(WINDOW_X, WINDOW_Y); sf::Vector3f cam_vec(0, 0, 0);
//window_sprite.setPosition(0, 0);
//// State values
//sf::Vector3f cam_vec(0, 0, 0);
//RayCaster ray_caster(map, map_dim, view_res); //RayCaster ray_caster(map, map_dim, view_res);
//sf::Vector2f *dp = camera.get_direction_pointer(); sf::Vector2f *dp = camera.get_direction_pointer();
//debug_text cam_text_x(1, 30, &dp->x, "X: "); debug_text cam_text_x(1, 30, &dp->x, "X: ");
//debug_text cam_text_y(2, 30, &dp->y, "Y: "); debug_text cam_text_y(2, 30, &dp->y, "Y: ");
//sf::Vector3f *mp = camera.get_movement_pointer(); sf::Vector3f *mp = camera.get_movement_pointer();
//debug_text cam_text_mov_x(4, 30, &mp->x, "X: "); debug_text cam_text_mov_x(4, 30, &mp->x, "X: ");
//debug_text cam_text_mov_y(5, 30, &mp->y, "Y: "); debug_text cam_text_mov_y(5, 30, &mp->y, "Y: ");
//debug_text cam_text_mov_z(6, 30, &mp->y, "Z: "); debug_text cam_text_mov_z(6, 30, &mp->y, "Z: ");
////debug_text cam_text_z(3, 30, &p->z); //debug_text cam_text_z(3, 30, &p->z);
//debug_text light_x(7, 30, &light[7], "X: "); debug_text light_x(7, 30, &light[7], "X: ");
//debug_text light_y(8, 30, &light[8], "Y: "); debug_text light_y(8, 30, &light[8], "Y: ");
//debug_text light_z(9, 30, &light[9], "Z: "); debug_text light_z(9, 30, &light[9], "Z: ");
//// =============================================================================== // ===============================================================================
//// Mouse capture // Mouse capture
//sf::Vector2i deltas; sf::Vector2i deltas;
//sf::Vector2i fixed(window.getSize()); sf::Vector2i fixed(window.getSize());
//bool mouse_enabled = true; bool mouse_enabled = true;
//sf::Vector3f cam_mov_vec; sf::Vector3f cam_mov_vec;
//while (window.isOpen()) { while (window.isOpen()) {
// // Poll for events from the user // Poll for events from the user
// sf::Event event; sf::Event event;
// while (window.pollEvent(event)) { while (window.pollEvent(event)) {
// // If the user tries to exit the application via the GUI // If the user tries to exit the application via the GUI
// if (event.type == sf::Event::Closed) if (event.type == sf::Event::Closed)
// window.close(); window.close();
// if (event.type == sf::Event::KeyPressed) { if (event.type == sf::Event::KeyPressed) {
// if (event.key.code == sf::Keyboard::Space) { if (event.key.code == sf::Keyboard::Space) {
// if (mouse_enabled) if (mouse_enabled)
// mouse_enabled = false; mouse_enabled = false;
// else else
// mouse_enabled = true; mouse_enabled = true;
// } }
// } }
// } }
// cam_vec.x = 0; cam_vec.x = 0;
// cam_vec.y = 0; cam_vec.y = 0;
// cam_vec.z = 0; cam_vec.z = 0;
// float speed = 1.0f; float speed = 1.0f;
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::LShift)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::LShift)) {
// speed = 0.2f; speed = 0.2f;
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::Q)) {
// camera.add_relative_impulse(Camera::DIRECTION::DOWN, speed); camera.add_relative_impulse(Camera::DIRECTION::DOWN, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::E)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::E)) {
// camera.add_relative_impulse(Camera::DIRECTION::UP, speed); camera.add_relative_impulse(Camera::DIRECTION::UP, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::W)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::W)) {
// camera.add_relative_impulse(Camera::DIRECTION::FORWARD, speed); camera.add_relative_impulse(Camera::DIRECTION::FORWARD, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::S)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::S)) {
// camera.add_relative_impulse(Camera::DIRECTION::REARWARD, speed); camera.add_relative_impulse(Camera::DIRECTION::REARWARD, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) {
// camera.add_relative_impulse(Camera::DIRECTION::LEFT, speed); camera.add_relative_impulse(Camera::DIRECTION::LEFT, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::D)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::D)) {
// camera.add_relative_impulse(Camera::DIRECTION::RIGHT, speed); camera.add_relative_impulse(Camera::DIRECTION::RIGHT, speed);
// } }
// if (sf::Keyboard::isKeyPressed(sf::Keyboard::T)) { if (sf::Keyboard::isKeyPressed(sf::Keyboard::T)) {
// camera.set_position(sf::Vector3f(50, 50, 50)); camera.set_position(sf::Vector3f(50, 50, 50));
// } }
// camera.add_static_impulse(cam_vec); camera.add_static_impulse(cam_vec);
// if (mouse_enabled) { if (mouse_enabled) {
// deltas = fixed - sf::Mouse::getPosition(); deltas = fixed - sf::Mouse::getPosition();
// if (deltas != sf::Vector2i(0, 0) && mouse_enabled == true) { if (deltas != sf::Vector2i(0, 0) && mouse_enabled == true) {
// // Mouse movement // Mouse movement
// sf::Mouse::setPosition(fixed); sf::Mouse::setPosition(fixed);
// camera.slew_camera(sf::Vector2f( camera.slew_camera(sf::Vector2f(
// deltas.y / 300.0f, deltas.y / 300.0f,
// deltas.x / 300.0f deltas.x / 300.0f
// )); ));
// } }
// } }
// // Time keeping // Time keeping
// elapsed_time = elap_time(); elapsed_time = elap_time();
// delta_time = elapsed_time - current_time; delta_time = elapsed_time - current_time;
// current_time = elapsed_time; current_time = elapsed_time;
// if (delta_time > 0.2f) if (delta_time > 0.2f)
// delta_time = 0.2f; delta_time = 0.2f;
// accumulator_time += delta_time; accumulator_time += delta_time;
// while ((accumulator_time - step_size) >= step_size) { while ((accumulator_time - step_size) >= step_size) {
// accumulator_time -= step_size; accumulator_time -= step_size;
// // ==== DELTA TIME LOCKED ==== // ==== DELTA TIME LOCKED ====
// } }
// float l[] = { float l[] = {
// light[9] * sin(delta_time / 1) + light[7] * cos(delta_time / 1), static_cast<float>(light[9] * sin(delta_time / 1) + light[7] * cos(delta_time / 1)),
// light[8], static_cast<float>(light[8]),
// light[9] * cos(delta_time / 1) - light[7] * sin(delta_time / 1) static_cast<float>(light[9] * cos(delta_time / 1) - light[7] * sin(delta_time / 1))
// }; };
// float l2[] = { float l2[] = {
// l[0] * cos(delta_time) - l[2] * sin(delta_time), static_cast<float>(l[0] * cos(delta_time) - l[2] * sin(delta_time)),
// l[0] * sin(delta_time) + l[2] * cos(delta_time), static_cast<float>(l[0] * sin(delta_time) + l[2] * cos(delta_time)),
// l[2] static_cast<float>(l[2])
// }; };
// light[7] = l[0]; light[7] = l[0];
// light[8] = l[1]; light[8] = l[1];
// light[9] = l[2]; light[9] = l[2];
// // ==== FPS LOCKED ==== // ==== FPS LOCKED ====
// camera.update(delta_time); camera.update(delta_time);
// // Run the raycast // Run the raycast
// c.run_kernel("min_kern", WORK_SIZE); c.run_kernel("min_kern", WORK_SIZE);
//
// // ==== RENDER ==== // ==== RENDER ====
// window.clear(sf::Color::Black); window.clear(sf::Color::Black);
// window.draw(s); window.draw(s);
// // Give the frame counter the frame time and draw the average frame time // Give the frame counter the frame time and draw the average frame time
// fps.frame(delta_time); fps.frame(delta_time);
// fps.draw(&window); fps.draw(&window);
// cam_text_x.draw(&window); cam_text_x.draw(&window);
// cam_text_y.draw(&window); cam_text_y.draw(&window);
// cam_text_mov_x.draw(&window); cam_text_mov_x.draw(&window);
// cam_text_mov_y.draw(&window); cam_text_mov_y.draw(&window);
// cam_text_mov_z.draw(&window); cam_text_mov_z.draw(&window);
// light_x.draw(&window); light_x.draw(&window);
// light_y.draw(&window); light_y.draw(&window);
// light_z.draw(&window); light_z.draw(&window);
//
// window.display(); window.display();
//} }
return 0; return 0;
} }

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