it works

Author: Peter Whidden

.gitmodules

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+[submodule "external/glm"]
+	path = external/glm
+	url = https://github.com/g-truc/glm

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.0)
+
+project(SP-OfflineRender)
+
+if(MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 -O3")
+else()
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -std=c++11 -O3")
+endif()
+
+include_directories(external/glm/)
+
+add_executable(render src/generated/full.cpp)

build/.gitignore

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+

external/glm

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+*.ppm

output/.gitignore

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+cat src/head.cpp $1 src/tail.cpp > src/generated/full.cpp
+cd build
+cmake ..
+make
+./render
+cd ..

render.sh

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+#define img_width 5000
+#define img_height 5000
+#define frame_count 1
+#define antialias 1

src/config.h

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+*.cpp

src/generated/.gitignore

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+#define GLM_FORCE_SWIZZLE 
+#include <glm/glm.hpp>
+#include "../config.h"
+#include "../output.cpp"
+
+#define time frameTime
+
+using glm::vec2;
+using glm::vec3;
+using glm::vec4;
+using glm::mat2;
+using glm::mat3;
+using glm::clamp;
+using glm::min;
+using glm::max;
+using glm::length;
+using glm::round;
+using glm::sin;
+using glm::cos;
+using glm::atan;
+using glm::sign;
+using glm::mod;
+using glm::mix;
+using glm::fract;
+using glm::normalize;
+
+vec3 worldPos = vec3(0.0f,0.0f,0.0f);
+vec3 cameraPosition = vec3(0.0f, 0.0f, -1.0f);
+

src/head.cpp

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+#include <string>
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <iomanip>
+
+std::string pad_number(int n)
+{
+    std::ostringstream ss;
+    ss << std::setw( 7 ) << std::setfill( '0' ) << n;
+    return ss.str();
+}
+
+void save_image(uint8_t *pixels, int x, int y, std::string name, int count) {
+    std::ofstream file(name+pad_number(count+1)+".ppm", std::ofstream::binary);
+    if (file.is_open()) {
+        file << "P6\n" << x << " " << y << "\n" << "255\n";
+        file.write((char *)pixels, x*y*3);
+        file.close();
+    } else {
+        std::cout << "Could not open file :(\n";
+    }
+}