/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
try
{
RequreExtentions();
// Load the source of the vertex shader. GLUS loader corrupts shaders.
// Thats why we do that manually.
//
std::ifstream vertSourceFile("../main/Vertex.vert");
std::ifstream fragSourceFile("../main/Fragment.frag");
std::string fragSource;
std::string vertSource;
fragSourceFile.seekg(0, std::ios::end);
fragSource.reserve(fragSourceFile.tellg());
fragSourceFile.seekg(0, std::ios::beg);
fragSource.assign((std::istreambuf_iterator<char>(fragSourceFile)), std::istreambuf_iterator<char>());
vertSourceFile.seekg(0, std::ios::end);
vertSource.reserve(vertSourceFile.tellg());
vertSourceFile.seekg(0, std::ios::beg);
vertSource.assign((std::istreambuf_iterator<char>(vertSourceFile)), std::istreambuf_iterator<char>());
const char* tmpVertSource = vertSource.c_str();
const char* tmpFragSource = fragSource.c_str();
if(!glusBuildProgram(&g_program, (const GLUSchar**)&tmpVertSource, 0, 0, 0, (const GLUSchar**)&tmpFragSource))
throw std::runtime_error("shader compilation failed!");
g_pFullScreenQuad = new FullScreenQuad();
// GL init done. Now init some our internal stuff, related to materials, cameras and other
//
return GLUS_TRUE;
}
catch(std::runtime_error e)
{
std::cerr << e.what() << std::endl;
exit(-1);
}
catch(...)
{
std::cerr << "Unexpected Exception (init)!" << std::endl;
exit(-1);
}
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
GLfloat points[] = { -1.0f, -1.0f, 0.0f, +1.0f, +1.0f, -1.0f, 0.0f, +1.0f, -1.0f, +1.0f, 0.0f, +1.0f, +1.0f, +1.0f, 0.0f, +1.0f };
GLfloat normals[] = { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f };
GLfloat tangents[] = { 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f };
GLfloat texCoords[] = { 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f };
GLuint indices[] = { 0, 1, 2, 1, 3, 2 };
GLuint numberVertices = 4;
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
numberIndices = 6;
// Load the source of the vertex shader.
glusLoadTextFile("../src/Example06/Vertex.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../src/Example06/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_lightDirLocation = glGetUniformLocation(g_program.program, "lightDir");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_textureLocation = glGetUniformLocation(g_program.program, "firstTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_normalMapLocation = glGetUniformLocation(g_program.program, "normalMap");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_normalLocation = glGetAttribLocation(g_program.program, "normal");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_tangentLocation = glGetAttribLocation(g_program.program, "tangent");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_texCoordLocation = glGetAttribLocation(g_program.program, "texCoord");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, numberVertices * 4 * sizeof(GLfloat), (GLfloat*) points, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, numberVertices * 3 * sizeof(GLfloat), (GLfloat*) normals, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_tangents);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_tangents);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, numberVertices * 3 * sizeof(GLfloat), (GLfloat*) tangents, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, numberVertices * 2 * sizeof(GLfloat), (GLfloat*) texCoords, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, numberIndices * sizeof(GLuint), (GLuint*) indices, GL_STATIC_DRAW);
glusLoadTgaImage("rock_color.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glusLoadTgaImage("rock_normal.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_normalMap);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_normalMap);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// Calculate the view matrix ...
glusLookAtf(g_modelView, 0.0f, 0.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniformMatrix4fv(g_modelViewLocation, 1, GL_FALSE, g_modelView);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_normalLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_tangents);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_tangentLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_tangentLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_texCoordLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_texCoordLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_textureLocation, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml
glActiveTexture( GL_TEXTURE0);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_texture);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_normalMapLocation, 1);
// http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml
glActiveTexture( GL_TEXTURE1);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_normalMap);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html
glClearDepth(1.0f);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_DEPTH_TEST);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_CULL_FACE);
return GLUS_TRUE;
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
GLUSshape sphere;
GLUStextfile vertexSource;
GLUStextfile geometrySource;
GLUStextfile fragmentSource;
// Load the source of the vertex shader.
glusLoadTextFile("../src/Example09/Vertex.vs", &vertexSource);
// Load the source of the geometry shader.
glusLoadTextFile("../src/Example09/Geometry.gs", &geometrySource);
// Load the source of the fragment shader.
glusLoadTextFile("../src/Example09/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, (const GLUSchar**) &geometrySource.text, (const GLUSchar**) &fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&geometrySource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
glusCreateSpheref(&sphere, 1.0f, 32);
numberIndices = sphere.numberIndices;
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_normalLocation = glGetAttribLocation(g_program.program, "normal");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) sphere.vertices, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) sphere.normals, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sphere.numberIndices * sizeof(GLuint), (GLuint*) sphere.indices, GL_STATIC_DRAW);
glusDestroyShapef(&sphere);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// ... and the view matrix ...
glusLookAtf(g_modelView, 0.0f, 0.0f, 6.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniformMatrix4fv(g_modelViewLocation, 1, GL_FALSE, g_modelView);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_normalLocation);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html
glClearDepth(1.0f);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_DEPTH_TEST);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_CULL_FACE);
return GLUS_TRUE;
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
// Points of a triangle.
GLfloat* points = (GLfloat*)malloc(WATER_PLANE_LENGTH*WATER_PLANE_LENGTH*4*sizeof(GLfloat));
GLuint* indices = (GLuint*)malloc(WATER_PLANE_LENGTH*(WATER_PLANE_LENGTH-1)*2*sizeof(GLuint));
GLUSshape background;
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLuint x, z, i, k;
GLuint waterTexture;
for (z = 0; z < WATER_PLANE_LENGTH; z++)
{
for (x = 0; x < WATER_PLANE_LENGTH; x++)
{
points[(x+z*(WATER_PLANE_LENGTH))*4 + 0] = -(GLfloat)WATER_PLANE_LENGTH/2 + 0.5f + (GLfloat)x;
points[(x+z*(WATER_PLANE_LENGTH))*4 + 1] = 0.0f;
points[(x+z*(WATER_PLANE_LENGTH))*4 + 2] = +(GLfloat)WATER_PLANE_LENGTH/2 - 0.5f - (GLfloat)z;
points[(x+z*(WATER_PLANE_LENGTH))*4 + 3] = 1.0f;
}
}
for (k = 0; k < WATER_PLANE_LENGTH-1; k++)
{
for (i = 0; i < WATER_PLANE_LENGTH; i++)
{
if (k%2 == 0)
{
indices[(i+k*(WATER_PLANE_LENGTH))*2 + 0] = i + k*WATER_PLANE_LENGTH;
indices[(i+k*(WATER_PLANE_LENGTH))*2 + 1] = i + (k+1)*WATER_PLANE_LENGTH;
}
else
{
indices[(i+k*(WATER_PLANE_LENGTH))*2 + 0] = WATER_PLANE_LENGTH - 1 - i + k*WATER_PLANE_LENGTH;
indices[(i+k*(WATER_PLANE_LENGTH))*2 + 1] = WATER_PLANE_LENGTH - 1 - i + (k+1)*WATER_PLANE_LENGTH;
}
}
}
// Load the source of the vertex shader.
glusLoadTextFile("../src/Example14/Vertex.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../src/Example14/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_waterPlaneLengthLocation = glGetUniformLocation(g_program.program, "waterPlaneLength");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_inverseCameraLocation = glGetUniformLocation(g_program.program, "inverseCameraMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_cubemapLocation = glGetUniformLocation(g_program.program, "cubemap");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_waterLocation = glGetUniformLocation(g_program.program, "waterTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_passedTimeLocation = glGetUniformLocation(g_program.program, "passedTime");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_waveParametersLocation = glGetUniformLocation(g_program.program, "waveParameters");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_waveDirectionsLocation = glGetUniformLocation(g_program.program, "waveDirections");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, WATER_PLANE_LENGTH*WATER_PLANE_LENGTH * 4 * sizeof(GLfloat), (GLfloat*) points, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, WATER_PLANE_LENGTH*(WATER_PLANE_LENGTH-1) * 2 * sizeof(GLuint), (GLuint*) indices, GL_STATIC_DRAW);
//
free(points);
free(indices);
//
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_cubemap);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_CUBE_MAP, g_cubemap);
glusLoadTgaImage("water_pos_x.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("water_neg_x.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("water_pos_y.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("water_neg_y.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("water_pos_z.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("water_neg_z.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
//
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1f(g_waterPlaneLengthLocation, (GLUSfloat)WATER_PLANE_LENGTH);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml
glActiveTexture(GL_TEXTURE0);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_CUBE_MAP, g_cubemap);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_cubemapLocation, 0);
// Get the render buffer texture
waterTexture = initTexture((GLUSfloat)WATER_PLANE_LENGTH);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml
glActiveTexture(GL_TEXTURE1);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, waterTexture);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_waterLocation, 1);
//
// Load the source of the vertex shader.
glusLoadTextFile("../src/Example14/VertexBackground.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../src/Example14/FragmentBackground.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_programBackground, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vaoBackground);
// ToDo:
glBindVertexArray(g_vaoBackground);
glusCreateSpheref(&background, (GLfloat)(GLfloat)WATER_PLANE_LENGTH/2.0f + 0.5f, 32);
g_numberIndicesBackground = background.numberIndices;
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocationBackground = glGetUniformLocation(g_programBackground.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocationBackground = glGetUniformLocation(g_programBackground.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_cubemapLocationBackground = glGetUniformLocation(g_programBackground.program, "cubemap");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocationBackground = glGetAttribLocation(g_programBackground.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_normalLocationBackground = glGetAttribLocation(g_programBackground.program, "normal");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_verticesBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, background.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) background.vertices, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_normalsBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normalsBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, background.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) background.normals, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indicesBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, background.numberIndices * sizeof(GLuint), (GLuint*) background.indices, GL_STATIC_DRAW);
glusDestroyShapef(&background);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_programBackground.program);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniformMatrix4fv(g_modelViewLocationBackground, 1, GL_FALSE, g_modelView);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocationBackground, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocationBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normalsBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_normalLocationBackground, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_normalLocationBackground);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_cubemapLocationBackground, 0);
//
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html
glClearDepth(1.0f);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_DEPTH_TEST);
return GLUS_TRUE;
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
// Points for referencing each texel
GLfloat points[PARTICLES_LOOKUP_WIDTH*PARTICLES_LOOKUP_WIDTH*2];
// Initial particle data
GLfloat particle[PARTICLES_LOOKUP_WIDTH*PARTICLES_LOOKUP_WIDTH*4];
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLuint x, y;
// Create points which are refernceing on the different texels
for (y = 0; y < PARTICLES_LOOKUP_WIDTH; y++)
{
for (x = 0; x < PARTICLES_LOOKUP_WIDTH; x++)
{
points[x*2+0 + y*PARTICLES_LOOKUP_WIDTH*2] = (GLfloat)x/(GLfloat)PARTICLES_LOOKUP_WIDTH;
points[x*2+1 + y*PARTICLES_LOOKUP_WIDTH*2] = (GLfloat)y/(GLfloat)PARTICLES_LOOKUP_WIDTH;
}
}
// Create the initial particles data
for (y = 0; y < PARTICLES_LOOKUP_WIDTH; y++)
{
for (x = 0; x < PARTICLES_LOOKUP_WIDTH; x++)
{
particle[x*4+0 + y*PARTICLES_LOOKUP_WIDTH*4] = 0.0f;
particle[x*4+1 + y*PARTICLES_LOOKUP_WIDTH*4] = 0.0f;
particle[x*4+2 + y*PARTICLES_LOOKUP_WIDTH*4] = 0.0f;
particle[x*4+3 + y*PARTICLES_LOOKUP_WIDTH*4] = (rand()%101)/100.0f;
}
}
// Load the source of the vertex shader.
glusLoadTextFile("../Example08/Vertex.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../Example08/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**)&vertexSource.text, 0, (const GLUSchar**)&fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_textureLocation = glGetUniformLocation(g_program.program, "firstTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_lookuptextureLocation = glGetUniformLocation(g_program.program, "readTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// ToDo:
glBindFragDataLocation(g_program.program, 0, "fragColor");
// Load the source of the vertex shader.
glusLoadTextFile("../Example08/UpdatePoints.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../Example08/UpdatePoints.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_programUpdate, (const GLUSchar**)&vertexSource.text, 0, (const GLUSchar**)&fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_lookuptextureLocationUpdate = glGetUniformLocation(g_programUpdate.program, "readTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_sizeLocation = glGetUniformLocation(g_programUpdate.program, "size");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_timeLocation = glGetUniformLocation(g_programUpdate.program, "time");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocationUpdate = glGetAttribLocation(g_programUpdate.program, "vertex");
// ToDo:
glBindFragDataLocation(g_programUpdate.program, 0, "fragParticle");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, PARTICLES_LOOKUP_WIDTH*PARTICLES_LOOKUP_WIDTH*2*sizeof(GLfloat), (GLfloat*)points, GL_STATIC_DRAW);
glusLoadTgaImage("particle.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(2, g_lookuptexture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_lookuptexture[0]);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, PARTICLES_LOOKUP_WIDTH, PARTICLES_LOOKUP_WIDTH, 0, GL_RGBA, GL_FLOAT, particle);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_lookuptexture[1]);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, PARTICLES_LOOKUP_WIDTH, PARTICLES_LOOKUP_WIDTH, 0, GL_RGBA, GL_FLOAT, particle);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
// ToDo:
glGenFramebuffers(2, g_lookupframebuffer);
// ToDo:
glBindFramebuffer(GL_FRAMEBUFFER, g_lookupframebuffer[0]);
// ToDo:
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, g_lookuptexture[0], 0);
// ToDo:
glBindFramebuffer(GL_FRAMEBUFFER, g_lookupframebuffer[1]);
// ToDo:
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, g_lookuptexture[1], 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// Calculate the view matrix ...
glusLookAtf(g_modelView, 0.0f, 0.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniformMatrix4fv(g_modelViewLocation, 1, GL_FALSE, g_modelView);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_textureLocation, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glActiveTexture.xml
glActiveTexture(GL_TEXTURE0);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_texture);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_programUpdate.program);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1f(g_sizeLocation, (GLfloat)PARTICLES_LOOKUP_WIDTH);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocationUpdate, 2, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocationUpdate);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
return GLUS_TRUE;
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
// Points of a cube.
GLfloat
points[] =
{ -0.5f, -0.5f, -0.5f, 1.0f, -0.5f, -0.5f, +0.5f, 1.0f, +0.5f, -0.5f, +0.5f, 1.0f, +0.5f, -0.5f, -0.5f, 1.0f, -0.5f, +0.5f, -0.5f, 1.0f, -0.5f, +0.5f, +0.5f, 1.0f, +0.5f, +0.5f, +0.5f, 1.0f, +0.5f, +0.5f, -0.5f, 1.0f, -0.5f, -0.5f, -0.5f, 1.0f, -0.5f, +0.5f, -0.5f, 1.0f, +0.5f, +0.5f, -0.5f, 1.0f, +0.5f, -0.5f, -0.5f, 1.0f, -0.5f, -0.5f, +0.5f, 1.0f, -0.5f, +0.5f, +0.5f, 1.0f, +0.5f, +0.5f, +0.5f, 1.0f, +0.5f, -0.5f, +0.5f, 1.0f, -0.5f, -0.5f, -0.5f, 1.0f, -0.5f, -0.5f, +0.5f, 1.0f, -0.5f, +0.5f, +0.5f, 1.0f, -0.5f, +0.5f, -0.5f, 1.0f, +0.5f, -0.5f, -0.5f, 1.0f, +0.5f, -0.5f, +0.5f, 1.0f, +0.5f, +0.5f, +0.5f, 1.0f, +0.5f, +0.5f, -0.5f, 1.0f };
// Normals of a cube.
GLfloat
normals[] =
{ +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, -1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f, +1.0f, +0.0f, +0.0f };
// The associated indices.
GLuint indices[] = { 0, 2, 1, 0, 3, 2, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11, 12, 15, 14, 12, 14, 13, 16, 17, 18, 16, 18, 19, 20, 23, 22, 20, 22, 21 };
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
// Load the source of the vertex shader.
glusLoadTextFile("../src/Example07/Vertex.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../src/Example07/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_inverseCameraLocation = glGetUniformLocation(g_program.program, "inverseCameraMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_cubemapLocation = glGetUniformLocation(g_program.program, "cubemap");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_normalLocation = glGetAttribLocation(g_program.program, "normal");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, 24 * 4 * sizeof(GLfloat), (GLfloat*) points, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, 24 * 3 * sizeof(GLfloat), (GLfloat*) normals, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 6 * 2 * 3 * sizeof(GLuint), (GLuint*) indices, GL_STATIC_DRAW);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_cubemap);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_CUBE_MAP, g_cubemap);
glusLoadTgaImage("cm_left.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("cm_right.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("cm_top.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("cm_bottom.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("cm_back.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glusLoadTgaImage("cm_front.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_REPEAT);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_normalLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_cubemapLocation, 0);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html
glClearDepth(1.0f);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_DEPTH_TEST);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable( GL_CULL_FACE);
return GLUS_TRUE;
}
/**
* Function for initialization.
*/
GLUSboolean init(GLUSvoid)
{
// Matrix for the model
GLfloat model[16];
GLUSshape cube;
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
// Load the source of the vertex shader.
glusLoadTextFile("../Example05/Vertex.vs", &vertexSource);
// Load the source of the fragment shader.
glusLoadTextFile("../Example05/Fragment.fs", &fragmentSource);
// Build and ...
glusBuildProgram(&g_program, (const GLUSchar**)&vertexSource.text, 0, (const GLUSchar**)&fragmentSource.text);
// Destroy the text resource
glusDestroyTextFile(&vertexSource);
// Destroy the text resource
glusDestroyTextFile(&fragmentSource);
// ToDo:
glGenVertexArrays(1, &g_vao);
// ToDo:
glBindVertexArray(g_vao);
glusCreateCubef(&cube, 0.5f);
numberIndices = cube.numberIndices;
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_projectionLocation = glGetUniformLocation(g_program.program, "projectionMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_modelViewLocation = glGetUniformLocation(g_program.program, "modelViewMatrix");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetUniformLocation.xml
g_textureLocation = glGetUniformLocation(g_program.program, "firstTexture");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_vertexLocation = glGetAttribLocation(g_program.program, "vertex");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_normalLocation = glGetAttribLocation(g_program.program, "normal");
// http://www.opengl.org/sdk/docs/man/xhtml/glGetAttribLocation.xml
g_texCoordLocation = glGetAttribLocation(g_program.program, "texCoord");
// ToDo:
glBindFragDataLocation(g_program.program, 0, "fragColor");
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, cube.numberVertices*4*sizeof(GLfloat), (GLfloat*)cube.vertices, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, cube.numberVertices*3*sizeof(GLfloat), (GLfloat*)cube.normals, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ARRAY_BUFFER, cube.numberVertices*2*sizeof(GLfloat), (GLfloat*)cube.texCoords, GL_STATIC_DRAW);
// http://www.opengl.org/sdk/docs/man/xhtml/glGenBuffers.xml
glGenBuffers(1, &g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indices);
// http://www.opengl.org/sdk/docs/man/xhtml/glBufferData.xml
glBufferData(GL_ELEMENT_ARRAY_BUFFER, cube.numberIndices*sizeof(GLuint), (GLuint*)cube.indices, GL_STATIC_DRAW);
glusDestroyShapef(&cube);
glusLoadTgaImage("crate.tga", &image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/gentextures.html
glGenTextures(1, &g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/bindtexture.html
glBindTexture(GL_TEXTURE_2D, g_texture);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/teximage2d.html
glTexImage2D(GL_TEXTURE_2D, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/texparameter.html
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
// http://www.opengl.org/sdk/docs/man/xhtml/glUseProgram.xml
glUseProgram(g_program.program);
// Calculate the model matrix ...
glusLoadIdentityf(model);
glusRotateRzRyRxf(model, 30.0f, 30.0f, 0.0f);
// ... and the view matrix ...
glusLookAtf(g_modelView, 0.0f, 0.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// ... to get the final model view matrix
glusMultMatrixf(g_modelView, g_modelView, model);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniformMatrix4fv(g_modelViewLocation, 1, GL_FALSE, g_modelView);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_vertices);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_vertexLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_normals);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_normalLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glBindBuffer.xml
glBindBuffer(GL_ARRAY_BUFFER, g_texCoords);
// http://www.opengl.org/sdk/docs/man/xhtml/glVertexAttribPointer.xml
glVertexAttribPointer(g_texCoordLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
// http://www.opengl.org/sdk/docs/man/xhtml/glEnableVertexAttribArray.xml
glEnableVertexAttribArray(g_texCoordLocation);
// http://www.opengl.org/sdk/docs/man/xhtml/glUniform.xml
glUniform1i(g_textureLocation, 0);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/clearcolor.html
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
// http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/cleardepth.html
glClearDepth(1.0f);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable(GL_DEPTH_TEST);
//http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/enable.html
glEnable(GL_CULL_FACE);
return GLUS_TRUE;
}