void Heightmap::save(std::string& filename){
TgaImage* tga = new TgaImage();
unsigned char* greyToRGBData = new unsigned char[sizex * sizey * 3];
int j = 0;
for (int i = 0; i < sizex*sizey; i++){
greyToRGBData[j++] = data[i];
greyToRGBData[j++] = data[i];
greyToRGBData[j++] = data[i];
}
tga->write(filename, sizex, sizey, 24, greyToRGBData);
delete []greyToRGBData;
delete tga;
}
bool Heightmap::load(std::string& filename){
TgaImage* tga = new TgaImage(filename);
sizex = tga->getWidth();
sizey = tga->getHeight();
data = new unsigned char[sizex * sizey];
int j = 0;
for (int i = 0; i < sizex*sizey; i++){
(data[i]) = (tga->imagedata[j]);
j += 3;
}
delete tga;
return true;
}
void myinit(void)
{
// Load shaders and use the resulting shader program
GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
glUseProgram(program);
// Generate vertex arrays for geometric shapes
generateCube(program, &cubeData);
generateCrate(program, &crateData);
uModelView = glGetUniformLocation( program, "ModelView" );
uProjection = glGetUniformLocation( program, "Projection" );
uView = glGetUniformLocation( program, "View" );
glClearColor( 0.1, 0.1, 0.2, 1.0 ); // dark blue background
uAmbient = glGetUniformLocation( program, "AmbientProduct" );
uDiffuse = glGetUniformLocation( program, "DiffuseProduct" );
uSpecular = glGetUniformLocation( program, "SpecularProduct" );
uLightPos = glGetUniformLocation( program, "LightPosition" );
uShininess = glGetUniformLocation( program, "Shininess" );
uTex = glGetUniformLocation( program, "Tex" );
uEnableTex = glGetUniformLocation( program, "EnableTex" );
glUniform4f(uAmbient, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uDiffuse, 0.6f, 0.6f, 0.6f, 1.0f);
glUniform4f(uSpecular, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uLightPos, 15.0f, 15.0f, 30.0f, 0.0f);
glUniform1f(uShininess, 100.0f);
glEnable(GL_DEPTH_TEST);
//Problem2: Load a tga file into a buffer.
TgaImage cubeImage;
if (!cubeImage.loadTGA("crate.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage crateImage;
if (!crateImage.loadTGA("crate.tga"))
{
printf("Error loading image file\n");
exit(1);
}
// Tri-linear filtering for problem 5
glGenTextures( 1, &texture_cube );
glBindTexture( GL_TEXTURE_2D, texture_cube );
glTexImage2D(GL_TEXTURE_2D, 0, 4, cubeImage.width, cubeImage.height, 0,
(cubeImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, cubeImage.data );
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
// Nearest neighbor filtering for problem 5
glGenTextures( 1, &texture_crate );
glBindTexture( GL_TEXTURE_2D, texture_crate );
glTexImage2D(GL_TEXTURE_2D, 0, 4, crateImage.width, crateImage.height, 0,
(crateImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, crateImage.data );
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glUniform1i( uTex, 0);
}
void myinit(void)
{
// Load shaders and use the resulting shader program
GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
glUseProgram(program);
// Generate vertex arrays for geometric shapes
generateCube(program, &cubeData);
generateSphere(program, &sphereData);
generateCone(program, &coneData);
generateCylinder(program, &cylData);
generatePyramid(program, &pyramidData);
uModelView = glGetUniformLocation( program, "ModelView" );
uProjection = glGetUniformLocation( program, "Projection" );
uView = glGetUniformLocation( program, "View" );
glClearColor( .1, .1, .6, 1.0 ); // dark blue background
uAmbient = glGetUniformLocation( program, "AmbientProduct" );
uDiffuse = glGetUniformLocation( program, "DiffuseProduct" );
uSpecular = glGetUniformLocation( program, "SpecularProduct" );
uLightPos = glGetUniformLocation( program, "LightPosition" );
uShininess = glGetUniformLocation( program, "Shininess" );
uTex = glGetUniformLocation( program, "Tex" );
uEnableTex = glGetUniformLocation( program, "EnableTex" );
glUniform4f(uAmbient, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uDiffuse, 0.6f, 0.6f, 0.6f, 1.0f);
glUniform4f(uSpecular, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uLightPos, 15.0f, 15.0f, 30.0f, 0.0f);
glUniform1f(uShininess, 100.0f);
glEnable(GL_DEPTH_TEST);
TgaImage coolImage;
if (!coolImage.loadTGA("dirt.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage earthImage;
if (!earthImage.loadTGA("earth.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage roofImage;
if (!roofImage.loadTGA("roof.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage treeImage;
if (!treeImage.loadTGA("tree.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage skyImage;
if (!skyImage.loadTGA("sky.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage stoneImage;
if (!stoneImage.loadTGA("stone.tga"))
{
printf("Error loading image file\n");
exit(1);
}
TgaImage leafImage;
if (!leafImage.loadTGA("leaf.tga"))
{
printf("Error loading image file\n");
exit(1);
}
glGenTextures( 1, &texture_cube );
glBindTexture( GL_TEXTURE_2D, texture_cube );
glTexImage2D(GL_TEXTURE_2D, 0, 4, coolImage.width, coolImage.height, 0,
(coolImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, coolImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glGenTextures( 1, &texture_earth );
glBindTexture( GL_TEXTURE_2D, texture_earth );
glTexImage2D(GL_TEXTURE_2D, 0, 4, earthImage.width, earthImage.height, 0,
(earthImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, earthImage.data );
//roof
glGenTextures( 1, &texture_roof );
glBindTexture( GL_TEXTURE_2D, texture_roof );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D(GL_TEXTURE_2D, 0, 4, roofImage.width, roofImage.height, 0,
(roofImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, roofImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glGenTextures( 1, &texture_trees );
glBindTexture( GL_TEXTURE_2D, texture_trees );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D(GL_TEXTURE_2D, 0, 4, treeImage.width, treeImage.height, 0,
(treeImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, treeImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glGenTextures( 1, &texture_leaf );
glBindTexture( GL_TEXTURE_2D, texture_leaf );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D(GL_TEXTURE_2D, 0, 4, leafImage.width, leafImage.height, 0,
(leafImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, leafImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glGenTextures( 1, &texture_stone );
glBindTexture( GL_TEXTURE_2D, texture_stone );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D(GL_TEXTURE_2D, 0, 4, stoneImage.width, stoneImage.height, 0,
(stoneImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, stoneImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
// Set texture sampler variable to texture unit 0
// (set in glActiveTexture(GL_TEXTURE0))
glUniform1i( uTex, 0);
Arcball = new BallData;
Ball_Init(Arcball);
Ball_Place(Arcball,qOne,0.75);
}
void Cylinder::init(const char *textureFile)
{
m_textureOn = (textureFile[0] != '\0')? true: false;
// Allocate space for vertices
memAlloc();
m_circlePoints = new vec2[m_numDivisions];
generateCylinder(); // generate cylinder points
// Create a vertex array object
#ifdef __APPLE__
glGenVertexArraysAPPLE(1, &m_vertexArrayObject);
glBindVertexArrayAPPLE(m_vertexArrayObject);
#else
glGenVertexArrays(1, &m_vertexArrayObject);
glBindVertexArray(m_vertexArrayObject);
#endif
// Create a buffer object
glGenBuffers(1, &m_vertexBufferObject);
glBindBuffer(GL_ARRAY_BUFFER, m_vertexBufferObject);
// Initialize buffer
glBufferData(GL_ARRAY_BUFFER, (sizeof(m_vertices[0]) + sizeof(m_normals[0]) + sizeof(m_textureUV[0]))*m_numVertices + sizeof(m_edges[0])*m_numEdges, NULL, GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(m_vertices[0])*m_numVertices, m_vertices);
glBufferSubData(GL_ARRAY_BUFFER, sizeof(m_vertices[0])*m_numVertices, sizeof(m_edges[0])*m_numEdges, m_edges);
glBufferSubData(GL_ARRAY_BUFFER, sizeof(m_vertices[0])*m_numVertices + sizeof(m_edges[0])*m_numEdges, sizeof(m_normals[0])*m_numVertices, m_normals);
glBufferSubData(GL_ARRAY_BUFFER, (sizeof(m_vertices[0]) + sizeof(m_normals[0]))*m_numVertices + sizeof(m_edges[0])*m_numEdges, sizeof(m_textureUV[0])*m_numVertices, m_textureUV);
// Load shaders and use the resulting shader program
m_program = InitShader("vshader.glsl", "fshader.glsl");
glUseProgram(m_program);
// Specify vertex positions as an input to the shader program
GLuint position = glGetAttribLocation(m_program, "vPosition");
glEnableVertexAttribArray(position);
glVertexAttribPointer(position, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
// Specify normal vectors as an input to the shader program
GLuint normal = glGetAttribLocation(m_program, "vNormal");
glEnableVertexAttribArray(normal);
glVertexAttribPointer(normal, 3, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(sizeof(m_vertices[0])*m_numVertices + sizeof(m_edges[0])*m_numEdges));
// Specify texture positions as an input to the shader program
GLuint texture = glGetAttribLocation(m_program, "vTexture");
glEnableVertexAttribArray(texture);
glVertexAttribPointer(texture, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET((sizeof(m_vertices[0]) + sizeof(m_normals[0]))*m_numVertices + sizeof(m_edges[0])*m_numEdges));
// Load image
TgaImage image;
if(m_textureOn && !image.loadTGA(textureFile))
{
printf("Error loading image file\n");
exit(1);
}
// Bind texture
glGenTextures(1, &m_textureBufferObject);
glBindTexture(GL_TEXTURE_2D, m_textureBufferObject);
glTexImage2D(GL_TEXTURE_2D, 0, 4, image.width, image.height, 0, (image.byteCount == 3) ? GL_BGR : GL_BGRA, GL_UNSIGNED_BYTE, image.data);
glGenerateMipmap(GL_TEXTURE_2D);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glUniform1i(glGetUniformLocation(m_program, "Tex"), 0);
// Clean up
delete [] m_vertices;
delete [] m_edges;
delete [] m_textureUV;
delete [] m_normals;
delete [] m_circlePoints;
}
void myinit(void)
{
// Load shaders and use the resulting shader program
GLuint program = InitShader( "vshader.glsl", "fshader.glsl" );
glUseProgram(program);
// Generate vertex arrays for geometric shapes
generateGrass(program, &grassData);
generateHeart(program, &heartData);
generateCube(program, &cubeData);
generateSphere(program, &sphereData);
generateCone(program, &coneData);
generateCylinder(program, &cylData);
uModelView = glGetUniformLocation( program, "ModelView" );
uProjection = glGetUniformLocation( program, "Projection" );
uView = glGetUniformLocation( program, "View" );
glClearColor( 0.5, 0.5, 1.0, 1.0 ); // dark blue background
uAmbient = glGetUniformLocation( program, "AmbientProduct" );
uDiffuse = glGetUniformLocation( program, "DiffuseProduct" );
uSpecular = glGetUniformLocation( program, "SpecularProduct" );
uLightPos = glGetUniformLocation( program, "LightPosition" );
uShininess = glGetUniformLocation( program, "Shininess" );
uTex = glGetUniformLocation( program, "Tex" );
uEnableTex = glGetUniformLocation( program, "EnableTex" );
glUniform4f(uAmbient, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uDiffuse, 0.6f, 0.6f, 0.6f, 1.0f);
glUniform4f(uSpecular, 0.2f, 0.2f, 0.2f, 1.0f);
glUniform4f(uLightPos, 15.0f, 15.0f, 30.0f, 0.0f);
glUniform1f(uShininess, 100.0f);
glEnable(GL_DEPTH_TEST);
TgaImage coolImage;
if (!coolImage.loadTGA("challenge.tga"))
{
printf("Error loading image file\n");
exit(1);
}
GLuint texture;
glGenTextures( 1, &texture );
glBindTexture( GL_TEXTURE_2D, texture );
glTexImage2D(GL_TEXTURE_2D, 0, 4, coolImage.width, coolImage.height, 0,
(coolImage.byteCount == 3) ? GL_BGR : GL_BGRA,
GL_UNSIGNED_BYTE, coolImage.data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glActiveTexture( GL_TEXTURE0 );
glBindTexture( GL_TEXTURE_2D, texture );
// Set texture sampler variable to texture unit 0
// (set in glActiveTexture(GL_TEXTURE0))
glUniform1i( uTex, 0 );
Arcball = new BallData ;
Ball_Init(Arcball);
Ball_Place(Arcball,qOne,0.75);
}
