1 #include "material.hpp"
4 #include <CoreGraphics/CoreGraphics.h>
6 Material::Material(const aiMaterial &ai, GLuint progId): progId(progId) {
7 if (ai.GetTextureCount(aiTextureType_DIFFUSE) > 0) {
9 ai.GetTexture(aiTextureType_DIFFUSE, 0, &path);
10 diffuseMap = new Texture(std::string(path.C_Str()));
12 if (ai.GetTextureCount(aiTextureType_SPECULAR) > 0) {
14 ai.GetTexture(aiTextureType_SPECULAR, 0, &path);
15 specularMap = new Texture(std::string(path.C_Str()));
17 if (ai.GetTextureCount(aiTextureType_NORMALS) > 0) {
19 ai.GetTexture(aiTextureType_NORMALS, 0, &path);
20 normalMap = new Texture(std::string(path.C_Str()));
22 ai.Get(AI_MATKEY_SHININESS, shininess);
23 ai.Get(AI_MATKEY_COLOR_AMBIENT, ambient);
24 ai.Get(AI_MATKEY_COLOR_DIFFUSE, diffuse);
25 ai.Get(AI_MATKEY_COLOR_SPECULAR, specular);
28 Material::Texture::Texture(const std::string &fileName) {
29 auto path = "models/" + fileName;
30 auto provider = CGDataProviderCreateWithFilename(path.c_str());
31 std::ifstream file(path);
33 file.read((char*)&magic, 8);
38 if (magic == 0x0a1a0a0d474e5089) // png magic number
39 ref = CGImageCreateWithPNGDataProvider(provider, nullptr, false, kCGRenderingIntentDefault);
41 ref = CGImageCreateWithJPEGDataProvider(provider, nullptr, false, kCGRenderingIntentDefault);
43 auto dataRef = CGDataProviderCopyData(CGImageGetDataProvider(ref));
44 auto img = (unsigned char*) CFDataGetBytePtr(dataRef);
46 glGenTextures(1, &texId);
47 glBindTexture(GL_TEXTURE_2D, texId);
48 auto width = CGImageGetWidth(ref), height = CGImageGetHeight(ref);
49 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img);
50 glGenerateMipmap(GL_TEXTURE_2D);
56 void Material::bind() const {
57 glUniform4f(glGetUniformLocation(progId, "material.ambient"), ambient.r, ambient.g, ambient.b, ambient.a);
58 glUniform4f(glGetUniformLocation(progId, "material.diffuse"), diffuse.r, diffuse.g, diffuse.b, diffuse.a);
59 glUniform4f(glGetUniformLocation(progId, "material.specular"), specular.r, specular.g, specular.b, specular.a);
60 glUniform1f(glGetUniformLocation(progId, "material.shininess"), shininess);
61 glUniform1i(glGetUniformLocation(progId, "material.hasTexture"), diffuseMap != nullptr);
62 glUniform1i(glGetUniformLocation(progId, "material.hasSpecularMap"), specularMap != nullptr);
63 glUniform1i(glGetUniformLocation(progId, "material.hasNormalMap"), normalMap != nullptr);
66 glUniform1i(glGetUniformLocation(progId, "material.diffuseMap"), 0);
67 glActiveTexture(GL_TEXTURE0);
68 glBindTexture(GL_TEXTURE_2D, diffuseMap->texId);
71 glUniform1i(glGetUniformLocation(progId, "material.specularMap"), 1);
72 glActiveTexture(GL_TEXTURE1);
73 glBindTexture(GL_TEXTURE_2D, specularMap->texId);
76 glUniform1i(glGetUniformLocation(progId, "material.normalMap"), 2);
77 glActiveTexture(GL_TEXTURE2);
78 glBindTexture(GL_TEXTURE_2D, normalMap->texId);