Textured Square Pyramids
This commit is contained in:
parent
532483c6f9
commit
49038b9a88
@ -9,6 +9,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Dot", "Dot\Dot.vcxproj", "{
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Models", "Models\Models.vcxproj", "{6E813500-09F1-40C1-BF2A-E8C4D0DE1142}"
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "TextureMapping", "TextureMapping\TextureMapping.vcxproj", "{609A0750-8502-4F60-8E54-AD032D6E216B}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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@ -41,6 +43,14 @@ Global
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{6E813500-09F1-40C1-BF2A-E8C4D0DE1142}.Release|x64.Build.0 = Release|x64
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{6E813500-09F1-40C1-BF2A-E8C4D0DE1142}.Release|x86.Build.0 = Release|Win32
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Debug|x64.ActiveCfg = Debug|x64
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||||
{609A0750-8502-4F60-8E54-AD032D6E216B}.Debug|x64.Build.0 = Debug|x64
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Debug|x86.ActiveCfg = Debug|Win32
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Debug|x86.Build.0 = Debug|Win32
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Release|x64.ActiveCfg = Release|x64
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Release|x64.Build.0 = Release|x64
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||||
{609A0750-8502-4F60-8E54-AD032D6E216B}.Release|x86.ActiveCfg = Release|Win32
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{609A0750-8502-4F60-8E54-AD032D6E216B}.Release|x86.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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@ -153,6 +153,9 @@
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<None Include="fragShader.glsl" />
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<None Include="vertShader.glsl" />
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</ItemGroup>
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<ItemGroup>
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<Image Include="..\TextureMapping\brick1.jpg" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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@ -35,4 +35,9 @@
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<Filter>Resource Files</Filter>
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</None>
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</ItemGroup>
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<ItemGroup>
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<Image Include="..\TextureMapping\brick1.jpg">
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<Filter>Resource Files</Filter>
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</Image>
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</ItemGroup>
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</Project>
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39
TextureMapping/ShaderError.h
Normal file
39
TextureMapping/ShaderError.h
Normal file
@ -0,0 +1,39 @@
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#pragma once
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#include <GL/glew.h>
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#include <cstdlib>
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#include <iostream>
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namespace ErrorCheck{
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inline void printShaderLog(GLuint shader) {
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int len = 0;
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int chWrittn = 0;
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char *log;
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glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &len);
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if (len > 0) {
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log = (char *)malloc(len);
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glGetShaderInfoLog(shader, len, &chWrittn, log);
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std::cout << "Shader Info Log: " << log << std::endl;
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free(log);
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} }
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inline void printProgramLog(int prog) {
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int len = 0;
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int chWrittn = 0;
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char *log;
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glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &len);
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if (len > 0) {
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log = (char *)malloc(len);
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glGetProgramInfoLog(prog, len, &chWrittn, log);
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std::cout << "Program Info Log: " << log << std::endl;
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free(log);
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} }
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inline bool checkOpenGLError() {
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bool foundError = false;
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int glErr = glGetError();
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while (glErr != GL_NO_ERROR) {
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std::cout << "glError: " << glErr << std::endl;
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foundError = true;
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glErr = glGetError();
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}
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return foundError;
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}
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}
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155
TextureMapping/TextureMapping.vcxproj
Normal file
155
TextureMapping/TextureMapping.vcxproj
Normal file
@ -0,0 +1,155 @@
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>16.0</VCProjectVersion>
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{609a0750-8502-4f60-8e54-ad032d6e216b}</ProjectGuid>
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<RootNamespace>TextureMapping</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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38
TextureMapping/TextureMapping.vcxproj.filters
Normal file
38
TextureMapping/TextureMapping.vcxproj.filters
Normal file
@ -0,0 +1,38 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
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<Filter Include="Header Files">
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<Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
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<Filter Include="Resource Files">
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<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
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BIN
TextureMapping/brick1.jpg
Normal file
BIN
TextureMapping/brick1.jpg
Normal file
Binary file not shown.
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After Width: | Height: | Size: 180 KiB |
8
TextureMapping/fragShader.glsl
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8
TextureMapping/fragShader.glsl
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#version 430
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layout (binding=0) uniform sampler2D samp;
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out vec4 color;
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in vec2 uv;
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void main(void)
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{
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color=texture(samp,uv);
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}
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BIN
TextureMapping/glew32.dll
Normal file
BIN
TextureMapping/glew32.dll
Normal file
Binary file not shown.
BIN
TextureMapping/ice.jpg
Normal file
BIN
TextureMapping/ice.jpg
Normal file
Binary file not shown.
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After Width: | Height: | Size: 185 KiB |
186
TextureMapping/main.cpp
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186
TextureMapping/main.cpp
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#include <GL/glew.h>
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#include <GLFW/glfw3.h>
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#include "utils.h"
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#include <algorithm>
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#include <vector>
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#include <glm/glm.hpp>
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#include <glm/gtc/type_ptr.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <array>
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#include <stack>
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#define numVAOs 1
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#define numVBOs 4
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GLuint renderingProgram;
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GLuint vao[numVAOs];
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GLuint vbo[numVBOs];
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glm::vec3 camera;
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GLuint mvLoc,projLoc;
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int width, height;
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float aspect;
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glm::mat4 mMat, pMat, vMat, mvMat;
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std::stack<glm::mat4>transforms;
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GLuint pyrTex;
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void setupVertices(void) { // 36 vertices, 12 triangles, makes 2x2x2 cube placed at origin
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float cubePositions[108] = {
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-1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f,
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1.0f, -1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 1.0f, -1.0f,
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1.0f, -1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, -1.0f,
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1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f, -1.0f,
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1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
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-1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f, 1.0f, 1.0f,
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-1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f, 1.0f,
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-1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f, 1.0f, 1.0f,
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-1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f,
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1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 1.0f,
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-1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, 1.0f,
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1.0f, 1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f, -1.0f
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};
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float pyramidPositions[54]={
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-1.0f, -1.0f, 1.0f, 1.0f, - 1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
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1.0f, -1.0f, 1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
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1.0f, -1.0f, -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 1.0f, 0.0f,
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-1.0f, -1.0f, - 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
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||||
-1.0f, -1.0f, - 1.0f, 1.0f, - 1.0f, 1.0f, -1.0f, -1.0f, 1.0f,
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||||
1.0f, -1.0f, 1.0f, -1.0f, -1.0f, -1.0f, 1.0f, -1.0f, -1.0f
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};
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float pyrTexCoords[36] =
|
||||
{ 0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 1.0f, // top and right faces
|
||||
0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.5f, 1.0f, // back and left faces
|
||||
0.0f, 0.0f, 200.0f, 200.0f, 0.0f, 200.0f, 200.0f, 200.0f, 0.0f, 0.0f, 200.0f, 0.0f }; // base triangles
|
||||
glGenVertexArrays(1, vao);
|
||||
glBindVertexArray(vao[0]);
|
||||
glGenBuffers(numVBOs, vbo);
|
||||
|
||||
glBindBuffer(GL_ARRAY_BUFFER, vbo[0]);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(cubePositions), cubePositions, GL_STATIC_DRAW);
|
||||
|
||||
glBindBuffer(GL_ARRAY_BUFFER, vbo[2]);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(pyramidPositions), pyramidPositions, GL_STATIC_DRAW);
|
||||
|
||||
glBindBuffer(GL_ARRAY_BUFFER, vbo[3]);
|
||||
glBufferData(GL_ARRAY_BUFFER, sizeof(pyrTexCoords), pyrTexCoords, GL_STATIC_DRAW);
|
||||
}
|
||||
|
||||
void setupTextures(){
|
||||
pyrTex=utils::loadTexture("brick1.jpg");
|
||||
glBindTexture(GL_TEXTURE_2D,pyrTex);
|
||||
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_LINEAR);
|
||||
glGenerateMipmap(GL_TEXTURE_2D);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
||||
}
|
||||
|
||||
void init(GLFWwindow* window) {
|
||||
renderingProgram=utils::createShaderProgram("vertShader.glsl","fragShader.glsl");
|
||||
camera={0.0f,2.0f,-10.0f};
|
||||
setupVertices();
|
||||
setupTextures();
|
||||
}
|
||||
|
||||
double lastTime=0;
|
||||
|
||||
void DrawCube(){
|
||||
glUniformMatrix4fv(mvLoc,1,GL_FALSE,glm::value_ptr(mMat));
|
||||
glUniformMatrix4fv(projLoc,1,GL_FALSE,glm::value_ptr(pMat));
|
||||
glBindBuffer(GL_ARRAY_BUFFER,vbo[0]);
|
||||
glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE,0,0);
|
||||
glDrawArrays(GL_TRIANGLES,0,36);
|
||||
}
|
||||
void DrawTexturedSquarePyramid(){
|
||||
|
||||
glActiveTexture(GL_TEXTURE0);
|
||||
glBindTexture(GL_TEXTURE_2D,pyrTex);
|
||||
|
||||
glUniformMatrix4fv(mvLoc,1,GL_FALSE,glm::value_ptr(mMat));
|
||||
glUniformMatrix4fv(projLoc,1,GL_FALSE,glm::value_ptr(pMat));
|
||||
glBindBuffer(GL_ARRAY_BUFFER,vbo[2]);
|
||||
glVertexAttribPointer(0,3,GL_FLOAT,GL_FALSE,0,0);
|
||||
glBindBuffer(GL_ARRAY_BUFFER,vbo[3]);
|
||||
glVertexAttribPointer(1,2,GL_FLOAT,GL_FALSE,0,0);
|
||||
|
||||
glDrawArrays(GL_TRIANGLES,0,18);
|
||||
}
|
||||
|
||||
void display(GLFWwindow* window, double currentTime) {
|
||||
double elapsedTime=currentTime-lastTime;
|
||||
lastTime=currentTime;
|
||||
|
||||
glClear(GL_DEPTH_BUFFER_BIT);
|
||||
glClearColor(0,0,0.2,1);
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
|
||||
glUseProgram(renderingProgram);
|
||||
glEnable(GL_DEPTH_TEST);
|
||||
glDepthFunc(GL_LEQUAL);
|
||||
glEnableVertexAttribArray(0);
|
||||
glEnableVertexAttribArray(1);
|
||||
|
||||
mvLoc=glGetUniformLocation(renderingProgram,"mv_matrix");
|
||||
projLoc=glGetUniformLocation(renderingProgram,"proj_matrix");
|
||||
|
||||
glfwGetFramebufferSize(window,&width,&height);
|
||||
aspect=(float)width/(float)height;
|
||||
pMat=glm::perspective(utils::degToRad(60),aspect,0.1f,1000.f);
|
||||
|
||||
vMat=glm::translate(glm::mat4(1.0f),glm::vec3{camera.x,camera.y,camera.z});
|
||||
transforms.push(vMat);
|
||||
|
||||
mMat=glm::scale(transforms.top(),{200.f,1.f,200.f});
|
||||
mMat=glm::translate(mMat,{0.f,0.f,0.f});
|
||||
transforms.push(mMat);
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(90)*currentTime/100),{0.f,1.f,0.f});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(12)),{0.f,0.f,1.f});
|
||||
DrawTexturedSquarePyramid();
|
||||
mMat=glm::translate(transforms.top(),{0.f,0.f,0.f});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(90)*currentTime/100),{0.f,1.f,0.f});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(192)),{0.f,0.f,1.f});
|
||||
mMat=glm::translate(mMat,{0.f,4.f,0.f});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(270)),{0.f,1.f,0.f});
|
||||
DrawTexturedSquarePyramid();
|
||||
|
||||
mMat=glm::translate(transforms.top(),{sin(currentTime*0.5)*6,sin(currentTime*0.5)*0.8-1,cos(currentTime*0.5)*6});
|
||||
transforms.push(mMat);
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(24)-28),{0,0,1});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(24)*currentTime+28),{0,1,0});
|
||||
//DrawCube();
|
||||
|
||||
mMat=glm::rotate(transforms.top(),utils::degToRad(90),{1,0,0});
|
||||
mMat=glm::translate(mMat,{sin(currentTime*3)*3,0,cos(currentTime*3)*3});
|
||||
mMat=glm::scale(mMat,{0.3,0.3,0.3});
|
||||
mMat=glm::rotate(mMat,float(-utils::degToRad(220)*currentTime+4),{0,1,0});
|
||||
//DrawCube();
|
||||
|
||||
mMat=glm::rotate(transforms.top(),utils::degToRad(90),{1,1,0});
|
||||
mMat=glm::translate(mMat,{sin(currentTime*3)*3,0,cos(currentTime*3)*3});
|
||||
mMat=glm::scale(mMat,{0.3,0.3,0.3});
|
||||
mMat=glm::rotate(mMat,float(utils::degToRad(120)*currentTime),{0,1,0});
|
||||
//DrawCube();
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
if (!glfwInit()) { exit(EXIT_FAILURE); }
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
|
||||
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
||||
GLFWwindow* window = glfwCreateWindow(1920, 1080, "Texture Mapping!", NULL, NULL);
|
||||
glfwSetWindowPos(window,1400,180);
|
||||
glfwMakeContextCurrent(window);
|
||||
if (glewInit() != GLEW_OK) { exit(EXIT_FAILURE); }
|
||||
glfwSwapInterval(1);
|
||||
|
||||
init(window);
|
||||
|
||||
while (!glfwWindowShouldClose(window)) {
|
||||
display(window,glfwGetTime());
|
||||
glfwSwapBuffers(window);
|
||||
glfwPollEvents();
|
||||
}
|
||||
|
||||
glfwDestroyWindow(window);
|
||||
glfwTerminate();
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
94
TextureMapping/utils.h
Normal file
94
TextureMapping/utils.h
Normal file
@ -0,0 +1,94 @@
|
||||
#pragma once
|
||||
#include <string>
|
||||
#include <fstream>
|
||||
#include <GL/glew.h>
|
||||
#include "ShaderError.h"
|
||||
#include <SOIL2/SOIL2.h>
|
||||
|
||||
#define PI 3.14159
|
||||
|
||||
class utils{
|
||||
inline static std::string readShaderSource(const char *filePath){
|
||||
std::string content;
|
||||
std::ifstream fileStream(filePath, std::ios::in);
|
||||
std::string line = "";
|
||||
if(fileStream.fail()){
|
||||
std::cout<<"Could not open shader "<<filePath<<"!"<<std::endl;
|
||||
throw;
|
||||
}
|
||||
while (fileStream.good()) {
|
||||
getline(fileStream, line);
|
||||
content.append(line + "\n");
|
||||
}
|
||||
fileStream.close();
|
||||
return content;
|
||||
}
|
||||
inline static void CompileShader(GLuint shader,std::string type){
|
||||
GLint compiled;
|
||||
glCompileShader(shader);
|
||||
ErrorCheck::checkOpenGLError();
|
||||
glGetShaderiv(shader,GL_COMPILE_STATUS,&compiled);
|
||||
if(compiled!=1){
|
||||
std::cout<<type<<" Compilation Failed!"<<std::endl;
|
||||
ErrorCheck::printShaderLog(shader);
|
||||
throw;
|
||||
}
|
||||
}
|
||||
inline static void CreateShader(GLuint type,std::string shaderName,const char*source,GLuint vfProgram){
|
||||
if(source!=nullptr){
|
||||
GLuint vShader=glCreateShader(type);
|
||||
std::string shaderFile=readShaderSource(source);
|
||||
const char*vertShaderSrc=shaderFile.c_str();
|
||||
glShaderSource(vShader,1,&vertShaderSrc,NULL);
|
||||
CompileShader(vShader,shaderName);
|
||||
glAttachShader(vfProgram,vShader);
|
||||
}
|
||||
};
|
||||
public:
|
||||
inline static GLuint createShaderProgram(const char*vertex,const char*fragment){
|
||||
return createShaderProgram(vertex,nullptr,nullptr,nullptr,fragment);
|
||||
}
|
||||
inline static GLuint createShaderProgram(const char*vertex,const char*geometry,const char*fragment){
|
||||
return createShaderProgram(vertex,nullptr,nullptr,geometry,fragment);
|
||||
}
|
||||
inline static GLuint createShaderProgram(const char*vertex,const char*tesselationCS,const char*tesselationES,const char*fragment){
|
||||
return createShaderProgram(vertex,tesselationCS,tesselationES,nullptr,fragment);
|
||||
}
|
||||
inline static GLuint createShaderProgram(const char*vertex,const char*tesselationCS,const char*tesselationES,const char*geometry,const char*fragment){
|
||||
|
||||
GLuint vfProgram=glCreateProgram();
|
||||
|
||||
CreateShader(GL_VERTEX_SHADER,"Vertex",vertex,vfProgram);
|
||||
CreateShader(GL_FRAGMENT_SHADER,"Fragment",fragment,vfProgram);
|
||||
CreateShader(GL_TESS_CONTROL_SHADER,"Tesselation Control",tesselationCS,vfProgram);
|
||||
CreateShader(GL_TESS_EVALUATION_SHADER,"Tesselation Evaluation",tesselationES,vfProgram);
|
||||
CreateShader(GL_GEOMETRY_SHADER,"Geometry",geometry,vfProgram);
|
||||
|
||||
GLint linked;
|
||||
glLinkProgram(vfProgram);
|
||||
ErrorCheck::checkOpenGLError();
|
||||
glGetProgramiv(vfProgram,GL_LINK_STATUS,&linked);
|
||||
if(linked!=1){
|
||||
std::cout<<"Linking Failed!"<<std::endl;
|
||||
ErrorCheck::printProgramLog(vfProgram);
|
||||
}
|
||||
return vfProgram;
|
||||
}
|
||||
inline static float degToRad(float deg){
|
||||
return deg*(PI/180);
|
||||
}
|
||||
|
||||
inline static float radToDeg(float rad){
|
||||
return rad*57.2957795130823208767;
|
||||
}
|
||||
|
||||
inline static GLuint loadTexture(const char*file){
|
||||
GLuint textureID;
|
||||
textureID=SOIL_load_OGL_texture(file,SOIL_LOAD_AUTO,SOIL_CREATE_NEW_ID,SOIL_FLAG_INVERT_Y);
|
||||
if(!textureID){
|
||||
std::cout<<"Could not load texture file "<<file<<std::endl;
|
||||
throw;
|
||||
}
|
||||
return textureID;
|
||||
}
|
||||
};
|
||||
67
TextureMapping/vertShader.glsl
Normal file
67
TextureMapping/vertShader.glsl
Normal file
@ -0,0 +1,67 @@
|
||||
#version 430
|
||||
layout (location=0) in vec3 position;
|
||||
layout (location=1) in vec2 texCoords;
|
||||
uniform mat4 mv_matrix;
|
||||
uniform mat4 proj_matrix;
|
||||
out vec4 varyingColor;
|
||||
out vec2 uv;
|
||||
|
||||
mat4 buildTranslate(float x, float y, float z);
|
||||
mat4 buildRotateX(float rad);
|
||||
mat4 buildRotateY(float rad);
|
||||
mat4 buildRotateZ(float rad);
|
||||
|
||||
void main(void)
|
||||
{
|
||||
gl_Position=proj_matrix*mv_matrix*vec4(position,1.0);
|
||||
uv=texCoords;
|
||||
}
|
||||
// builds and returns a translation matrix
|
||||
mat4 buildTranslate(float x, float y, float z)
|
||||
{
|
||||
mat4 trans = mat4(1.0, 0.0, 0.0, 0.0,
|
||||
0.0, 1.0, 0.0, 0.0,
|
||||
0.0, 0.0, 1.0, 0.0,
|
||||
x, y, z, 1.0 );
|
||||
return trans;
|
||||
}
|
||||
|
||||
// builds and returns a matrix that performs a rotation around the X axis
|
||||
mat4 buildRotateX(float rad)
|
||||
{
|
||||
mat4 xrot = mat4(1.0, 0.0, 0.0, 0.0,
|
||||
0.0, cos(rad), -sin(rad), 0.0,
|
||||
0.0, sin(rad), cos(rad), 0.0,
|
||||
0.0, 0.0, 0.0, 1.0 );
|
||||
return xrot;
|
||||
}
|
||||
|
||||
// builds and returns a matrix that performs a rotation around the Y axis
|
||||
mat4 buildRotateY(float rad)
|
||||
{
|
||||
mat4 yrot = mat4(cos(rad), 0.0, sin(rad), 0.0,
|
||||
0.0, 1.0, 0.0, 0.0,
|
||||
-sin(rad), 0.0, cos(rad), 0.0,
|
||||
0.0, 0.0, 0.0, 1.0 );
|
||||
return yrot;
|
||||
}
|
||||
|
||||
// builds and returns a matrix that performs a rotation around the Z axis
|
||||
mat4 buildRotateZ(float rad)
|
||||
{
|
||||
mat4 zrot = mat4(cos(rad), -sin(rad), 0.0, 0.0,
|
||||
sin(rad), cos(rad), 0.0, 0.0,
|
||||
0.0, 0.0, 1.0, 0.0,
|
||||
0.0, 0.0, 0.0, 1.0 );
|
||||
return zrot;
|
||||
}
|
||||
|
||||
// builds and returns a scale matrix
|
||||
mat4 buildScale(float x, float y, float z)
|
||||
{
|
||||
mat4 scale = mat4(x, 0.0, 0.0, 0.0,
|
||||
0.0, y, 0.0, 0.0,
|
||||
0.0, 0.0, z, 0.0,
|
||||
0.0, 0.0, 0.0, 1.0 );
|
||||
return scale;
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user