GLUSboolean init(GLUSvoid)
{
GLUSshape torus;
GLUSshape backgroundSphere;
GLUStgaimage image;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
glusLoadTextFile("../Example11_ES/shader/glass.vert.glsl", &vertexSource);
glusLoadTextFile("../Example11_ES/shader/glass.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_program, (const GLUSchar**) &vertexSource.text, (const GLUSchar**) &fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
glusLoadTextFile("../Example11_ES/shader/background.vert.glsl", &vertexSource);
glusLoadTextFile("../Example11_ES/shader/background.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_programBackground, (const GLUSchar**) &vertexSource.text, (const GLUSchar**) &fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_viewProjectionMatrixLocation = glGetUniformLocation(g_program.program, "u_viewProjectionMatrix");
g_modelMatrixLocation = glGetUniformLocation(g_program.program, "u_modelMatrix");
g_normalMatrixLocation = glGetUniformLocation(g_program.program, "u_normalMatrix");
g_cameraLocation = glGetUniformLocation(g_program.program, "u_camera");
g_cubemapLocation = glGetUniformLocation(g_program.program, "u_cubemap");
g_vertexLocation = glGetAttribLocation(g_program.program, "a_vertex");
g_normalLocation = glGetAttribLocation(g_program.program, "a_normal");
//
g_viewProjectionMatrixBackgroundLocation = glGetUniformLocation(g_programBackground.program, "u_viewProjectionMatrix");
g_modelMatrixBackgroundLocation = glGetUniformLocation(g_programBackground.program, "u_modelMatrix");
g_cubemapBackgroundLocation = glGetUniformLocation(g_programBackground.program, "u_cubemap");
g_vertexBackgroundLocation = glGetAttribLocation(g_programBackground.program, "a_vertex");
//
glGenTextures(1, &g_cubemap);
glBindTexture(GL_TEXTURE_CUBE_MAP, g_cubemap);
glusLoadTgaImage("cm_pos_x.tga", &image);
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_neg_x.tga", &image);
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_pos_y.tga", &image);
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_neg_y.tga", &image);
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_pos_z.tga", &image);
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_neg_z.tga", &image);
glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
glusDestroyTgaImage(&image);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
//
glusCreateTorusf(&torus, 0.25f, 1.0f, 32, 32);
g_numberIndicesSphere = torus.numberIndices;
glGenBuffers(1, &g_verticesVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glBufferData(GL_ARRAY_BUFFER, torus.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) torus.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glBufferData(GL_ARRAY_BUFFER, torus.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) torus.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, torus.numberIndices * sizeof(GLuint), (GLuint*) torus.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&torus);
//
glusCreateSpheref(&backgroundSphere, g_circleRadius, 32);
g_numberIndicesBackground = backgroundSphere.numberIndices;
glGenBuffers(1, &g_verticesBackgroundVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glBufferData(GL_ARRAY_BUFFER, backgroundSphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) backgroundSphere.vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesBackgroundVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, backgroundSphere.numberIndices * sizeof(GLuint), (GLuint*) backgroundSphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&backgroundSphere);
//
glUseProgram(g_program.program);
glUniform1i(g_cubemapLocation, 0);
glGenVertexArrays(1, &g_vao);
glBindVertexArray(g_vao);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
//
glUseProgram(g_programBackground.program);
glUniform1i(g_cubemapBackgroundLocation, 0);
glGenVertexArrays(1, &g_vaoBackground);
glBindVertexArray(g_vaoBackground);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glVertexAttribPointer(g_vertexBackgroundLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexBackgroundLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
//
glBindTexture(GL_TEXTURE_CUBE_MAP, g_cubemap);
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepthf(1.0f);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
return GLUS_TRUE;
}
GLUSboolean init(GLUSvoid)
{
// This is a white light.
struct LightProperties light = { { 1.0f, 1.0f, 1.0f }, { 0.3f, 0.3f, 0.3f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } };
// Blue color material with white specular color.
struct MaterialProperties material = { { 0.0f, 0.1f, 0.1f, 1.0f }, { 0.0f, 0.8f, 0.8f, 1.0f }, { 0.6f, 0.6f, 0.6f, 1.0f }, 60.0f };
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLUSshape sphere;
GLUSshape plane;
glusLoadTextFile("../Example18/shader/phong.vert.glsl", &vertexSource);
glusLoadTextFile("../Example18/shader/phong.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_projectionMatrixLocation = glGetUniformLocation(g_program.program, "u_projectionMatrix");
g_viewMatrixLocation = glGetUniformLocation(g_program.program, "u_viewMatrix");
g_modelMatrixLocation = glGetUniformLocation(g_program.program, "u_modelMatrix");
g_normalMatrixLocation = glGetUniformLocation(g_program.program, "u_normalMatrix");
g_light.directionLocation = glGetUniformLocation(g_program.program, "u_light.direction");
g_light.ambientColorLocation = glGetUniformLocation(g_program.program, "u_light.ambientColor");
g_light.diffuseColorLocation = glGetUniformLocation(g_program.program, "u_light.diffuseColor");
g_light.specularColorLocation = glGetUniformLocation(g_program.program, "u_light.specularColor");
g_material.ambientColorLocation = glGetUniformLocation(g_program.program, "u_material.ambientColor");
g_material.diffuseColorLocation = glGetUniformLocation(g_program.program, "u_material.diffuseColor");
g_material.specularColorLocation = glGetUniformLocation(g_program.program, "u_material.specularColor");
g_material.specularExponentLocation = glGetUniformLocation(g_program.program, "u_material.specularExponent");
g_planeLocation = glGetUniformLocation(g_program.program, "u_plane");
g_vertexLocation = glGetAttribLocation(g_program.program, "a_vertex");
g_normalLocation = glGetAttribLocation(g_program.program, "a_normal");
//
// Use a helper function to create a sphere.
glusCreateSpheref(&sphere, 0.5f, 64);
g_numberIndicesSphere = sphere.numberIndices;
glGenBuffers(1, &g_verticesVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) sphere.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) sphere.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sphere.numberIndices * sizeof(GLuint), (GLuint*) sphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&sphere);
//
glusCreatePlanef(&plane, 0.5f);
g_numberIndicesPlane = plane.numberIndices;
glGenBuffers(1, &g_verticesPlaneVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesPlaneVBO);
glBufferData(GL_ARRAY_BUFFER, plane.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) plane.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsPlaneVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsPlaneVBO);
glBufferData(GL_ARRAY_BUFFER, plane.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) plane.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesPlaneVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesPlaneVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, plane.numberIndices * sizeof(GLuint), (GLuint*) plane.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&plane);
//
glUseProgram(g_program.program);
glGenVertexArrays(1, &g_vao);
glBindVertexArray(g_vao);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
//
glGenVertexArrays(1, &g_planeVAO);
glBindVertexArray(g_planeVAO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesPlaneVBO);
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsPlaneVBO);
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesPlaneVBO);
//
glusLookAtf(g_viewMatrix, 0.0f, 0.0f, 3.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
glUniformMatrix4fv(g_viewMatrixLocation, 1, GL_FALSE, g_viewMatrix);
//
glusVector3Normalizef(light.direction);
// Transform light to camera space, as it is currently in world space.
glusMatrix4x4MultiplyVector3f(light.direction, g_viewMatrix, light.direction);
// Set up light ...
glUniform3fv(g_light.directionLocation, 1, light.direction);
glUniform4fv(g_light.ambientColorLocation, 1, light.ambientColor);
glUniform4fv(g_light.diffuseColorLocation, 1, light.diffuseColor);
glUniform4fv(g_light.specularColorLocation, 1, light.specularColor);
// ... and material values.
glUniform4fv(g_material.ambientColorLocation, 1, material.ambientColor);
glUniform4fv(g_material.diffuseColorLocation, 1, material.diffuseColor);
glUniform4fv(g_material.specularColorLocation, 1, material.specularColor);
glUniform1f(g_material.specularExponentLocation, material.specularExponent);
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
// No back face culling, as we need it for the stencil algorithm.
// Enable the stencil test - mainly needed for the plane.
glEnable(GL_STENCIL_TEST);
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;
}
GLUSboolean init(GLUSvoid)
{
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLUStgaimage image;
GLUSgroupList* groupWalker;
GLUSmaterialList* materialWalker;
GLUSshape sphere;
//
// Each point light is rendered as a sphere.
//
glusLoadTextFile("../Example31/shader/point_light.vert.glsl", &vertexSource);
glusLoadTextFile("../Example31/shader/point_light.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_programPointLight, (const GLUSchar**)&vertexSource.text, 0, 0, 0, (const GLUSchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_projectionMatrixPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_projectionMatrix");
g_viewMatrixPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_viewMatrix");
g_modelMatrixPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_modelMatrix");
g_positionMatrixPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_positionMatrix");
g_biasMatrixPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_biasMatrix");
g_radiusPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_lightRadius");
g_diffusePointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_diffuse");
g_specularPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_specular");
g_positionPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_position");
g_normalPointLightLocation = glGetUniformLocation(g_programPointLight.program, "u_normal");
g_vertexPointLightLocation = glGetAttribLocation(g_programPointLight.program, "a_vertex");
// Use a helper function to create a cube.
glusCreateSpheref(&sphere, POINT_LIGHT_RADIUS, 32);
g_numberIndicesPointLight = sphere.numberIndices;
glGenBuffers(1, &g_verticesPointLightVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesPointLightVBO);
// Transfer the vertices from CPU to GPU.
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)sphere.vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesPointLightVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesPointLightVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sphere.numberIndices * sizeof(GLuint), (GLuint*)sphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&sphere);
glGenVertexArrays(1, &g_vaoPointLight);
glBindVertexArray(g_vaoPointLight);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesPointLightVBO);
glVertexAttribPointer(g_vertexPointLightLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexPointLightLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesPointLightVBO);
glBindVertexArray(0);
//
// The point lights are moving forth and back between the columns and rows.
// Here, a random position and moving direction of the point light is generated.
//
glusRandomSetSeed(13);
// Note: If more than 16 lights are used, make sure to store them in another matrix or buffer.
for (GLint i = 0; i < POINT_LIGHT_COUNT; i++)
{
g_positionMatrix[i] = glusRandomUniformGetFloatf(0.0f, (float)POINT_LIGHT_COUNT - 2.0f);
g_directionMatrix[i] = rand() % 2 == 0 ? 1.0f : -1.0f;
}
//
//
//
glusLoadTextFile("../Example31/shader/deferred_shading.vert.glsl", &vertexSource);
glusLoadTextFile("../Example31/shader/deferred_shading.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_programDeferredShading, (const GLUSchar**)&vertexSource.text, 0, 0, 0, (const GLUSchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_projectionMatrixLocation = glGetUniformLocation(g_programDeferredShading.program, "u_projectionMatrix");
g_viewMatrixLocation = glGetUniformLocation(g_programDeferredShading.program, "u_viewMatrix");
g_modelMatrixLocation = glGetUniformLocation(g_programDeferredShading.program, "u_modelMatrix");
g_normalMatrixLocation = glGetUniformLocation(g_programDeferredShading.program, "u_normalMatrix");
g_material.diffuseColorLocation = glGetUniformLocation(g_programDeferredShading.program, "u_material.diffuseColor");
g_material.specularColorLocation = glGetUniformLocation(g_programDeferredShading.program, "u_material.specularColor");
g_material.specularExponentLocation = glGetUniformLocation(g_programDeferredShading.program, "u_material.specularExponent");
g_material.diffuseTextureLocation = glGetUniformLocation(g_programDeferredShading.program, "u_material.diffuseTexture");
g_useTextureLocation = glGetUniformLocation(g_programDeferredShading.program, "u_useTexture");
g_vertexLocation = glGetAttribLocation(g_programDeferredShading.program, "a_vertex");
g_normalLocation = glGetAttribLocation(g_programDeferredShading.program, "a_normal");
g_texCoordLocation = glGetAttribLocation(g_programDeferredShading.program, "a_texCoord");
//
// Use a helper function to load the wavefront object file.
//
glusLoadGroupedObjFile("ChessPawn.obj", &g_wavefront);
glGenBuffers(1, &g_wavefront.verticesVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.verticesVBO);
glBufferData(GL_ARRAY_BUFFER, g_wavefront.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)g_wavefront.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_wavefront.normalsVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.normalsVBO);
glBufferData(GL_ARRAY_BUFFER, g_wavefront.numberVertices * 3 * sizeof(GLfloat), (GLfloat*)g_wavefront.normals, GL_STATIC_DRAW);
glGenBuffers(1, &g_wavefront.texCoordsVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.texCoordsVBO);
glBufferData(GL_ARRAY_BUFFER, g_wavefront.numberVertices * 2 * sizeof(GLfloat), (GLfloat*)g_wavefront.texCoords, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
//
// Set up indices and the VAOs for each group
//
glUseProgram(g_programDeferredShading.program);
groupWalker = g_wavefront.groups;
while (groupWalker)
{
glGenBuffers(1, &groupWalker->group.indicesVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, groupWalker->group.indicesVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, groupWalker->group.numberIndices * sizeof(GLuint), (GLuint*)groupWalker->group.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
//
glGenVertexArrays(1, &groupWalker->group.vao);
glBindVertexArray(groupWalker->group.vao);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.verticesVBO);
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.normalsVBO);
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_wavefront.texCoordsVBO);
glVertexAttribPointer(g_texCoordLocation, 2, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_texCoordLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, groupWalker->group.indicesVBO);
glBindVertexArray(0);
groupWalker = groupWalker->next;
}
//
// Load the textures, if there are available
//
materialWalker = g_wavefront.materials;
while (materialWalker)
{
if (materialWalker->material.diffuseTextureFilename[0] != '\0')
{
// Load the image.
glusLoadTgaImage(materialWalker->material.diffuseTextureFilename, &image);
// Generate and bind a texture.
glGenTextures(1, &materialWalker->material.diffuseTextureName);
glBindTexture(GL_TEXTURE_2D, materialWalker->material.diffuseTextureName);
// Transfer the image data from the CPU to the GPU.
glTexImage2D(GL_TEXTURE_2D, 0, image.format, image.width, image.height, 0, image.format, GL_UNSIGNED_BYTE, image.data);
// Setting the texture parameters.
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glGenerateMipmap(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, 0);
}
materialWalker = materialWalker->next;
}
//
// Setting up the deferred shading geometry buffer.
//
glGenTextures(1, &g_dsDiffuseTexture);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, g_dsDiffuseTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
//
glGenTextures(1, &g_dsSpecularTexture);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, g_dsSpecularTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
//
glGenTextures(1, &g_dsPositionTexture);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, g_dsPositionTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_RGBA, GL_FLOAT, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
//
glGenTextures(1, &g_dsNormalTexture);
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, g_dsNormalTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB32F, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_RGB, GL_FLOAT, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
//
glGenTextures(1, &g_dsDepthTexture);
glActiveTexture(GL_TEXTURE4);
glBindTexture(GL_TEXTURE_2D, g_dsDepthTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, TEXTURE_WIDTH, TEXTURE_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
//
glGenFramebuffers(1, &g_dsFBO);
glBindFramebuffer(GL_FRAMEBUFFER, g_dsFBO);
// Attach the color buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, g_dsDiffuseTexture, 0);
// Attach the normal buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, GL_TEXTURE_2D, g_dsSpecularTexture, 0);
// Attach the color buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, GL_TEXTURE_2D, g_dsPositionTexture, 0);
// Attach the normal buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3, GL_TEXTURE_2D, g_dsNormalTexture, 0);
// ... and the depth buffer,
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, g_dsDepthTexture, 0);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
printf("GL_FRAMEBUFFER_COMPLETE error 0x%x", glCheckFramebufferStatus(GL_FRAMEBUFFER));
return GLUS_FALSE;
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
//
//
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
// The color buffer is accumulated for each light, so use this blend function when doing the lighting pass.
glBlendFunc(GL_ONE, GL_ONE);
return GLUS_TRUE;
}
SimpleMesh::SimpleMesh(GLuint a_programId, int a_slicesNum, int a_meshType, float a_halfSize)
{
if(a_meshType == SPHERE)
glusCreateSpheref(&m_glusShape, a_halfSize, a_slicesNum);
else if(a_meshType == CUBE)
glusCreateCubef(&m_glusShape, a_halfSize);
else if(a_meshType == PLANE)
{
glusCreatePlanef(&m_glusShape, a_halfSize);
for(unsigned int i=0;i<2*m_glusShape.numberVertices;i++)
m_glusShape.texCoords[i] *= 2.0f;
}
else if(a_meshType == TORUS)
glusCreateTorusf(&m_glusShape, 0.5f*a_halfSize, a_halfSize, a_slicesNum, 32*a_slicesNum);
else
glusCreateCubef(&m_glusShape, 1.0f);
m_vertexPosBufferObject = 0;
m_vertexPosLocation = glGetAttribLocation(a_programId, "vertex");
m_vertexNormLocation = glGetAttribLocation(a_programId, "normal");
m_vertexTexCoordsLocation = glGetAttribLocation(a_programId, "texCoord");
GLint maxVertexAttributes = 0;
glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &maxVertexAttributes);
// create buffers a,d fill them with data
// vertex positions
//
glGenBuffers(1, &m_vertexPosBufferObject); CHECK_GL_ERRORS;
glBindBuffer(GL_ARRAY_BUFFER, m_vertexPosBufferObject); CHECK_GL_ERRORS;
glBufferData(GL_ARRAY_BUFFER, m_glusShape.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) m_glusShape.vertices, GL_STATIC_DRAW); CHECK_GL_ERRORS;
// vertex normals
//
glGenBuffers(1, &m_vertexNormBufferObject); CHECK_GL_ERRORS;
glBindBuffer(GL_ARRAY_BUFFER, m_vertexNormBufferObject); CHECK_GL_ERRORS;
glBufferData(GL_ARRAY_BUFFER, m_glusShape.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) m_glusShape.normals, GL_STATIC_DRAW); CHECK_GL_ERRORS;
// vertex texture coordinates
//
glGenBuffers(1, &m_vertexTexCoordsBufferObject); CHECK_GL_ERRORS;
glBindBuffer(GL_ARRAY_BUFFER, m_vertexTexCoordsBufferObject); CHECK_GL_ERRORS;
glBufferData(GL_ARRAY_BUFFER, m_glusShape.numberVertices * 2 * sizeof(GLfloat), (GLfloat*) m_glusShape.texCoords, GL_STATIC_DRAW); CHECK_GL_ERRORS;
// index buffer
//
glGenBuffers(1, &m_indexBufferObject);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_indexBufferObject);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, m_glusShape.numberIndices * sizeof(GLuint), (GLuint*)m_glusShape.indices, GL_STATIC_DRAW);
// create VAO and bind each buffer to appropriate "pointer", called vertex array attribute
//
glGenVertexArrays(1, &m_vertexArrayObject); CHECK_GL_ERRORS;
glBindVertexArray(m_vertexArrayObject); CHECK_GL_ERRORS;
if(m_vertexPosLocation < GLuint(maxVertexAttributes))
{
glBindBuffer(GL_ARRAY_BUFFER, m_vertexPosBufferObject); CHECK_GL_ERRORS;
glEnableVertexAttribArray(m_vertexPosLocation); CHECK_GL_ERRORS;
glVertexAttribPointer(m_vertexPosLocation, 4, GL_FLOAT, GL_FALSE, 0, 0); CHECK_GL_ERRORS;
}
if(m_vertexNormLocation < GLuint(maxVertexAttributes))
{
glBindBuffer(GL_ARRAY_BUFFER, m_vertexNormBufferObject); CHECK_GL_ERRORS;
glEnableVertexAttribArray(m_vertexNormLocation); CHECK_GL_ERRORS;
glVertexAttribPointer(m_vertexNormLocation, 3, GL_FLOAT, GL_FALSE, 0, 0); CHECK_GL_ERRORS;
}
if(m_vertexTexCoordsLocation < GLuint(maxVertexAttributes))
{
glBindBuffer(GL_ARRAY_BUFFER, m_vertexTexCoordsBufferObject); CHECK_GL_ERRORS;
glEnableVertexAttribArray(m_vertexTexCoordsLocation); CHECK_GL_ERRORS;
glVertexAttribPointer(m_vertexTexCoordsLocation, 2, GL_FLOAT, GL_FALSE, 0, 0); CHECK_GL_ERRORS;
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_indexBufferObject); CHECK_GL_ERRORS;
glBindVertexArray(0); // unbind VAO
}
GLUSboolean init(GLUSvoid)
{
GLfloat viewMatrix[16];
GLfloat normalMatrix[9];
// This is a white light.
struct LightProperties light = { { 1.0f, 1.0f, 1.0f }, { 0.3f, 0.3f, 0.3f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } };
// Blue color material with white specular color.
struct MaterialProperties material = { { 0.0f, 0.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 1.0f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f }, 20.0f };
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLUSshape sphere;
glusLoadTextFile("../Example05/shader/phong.vert.glsl", &vertexSource);
glusLoadTextFile("../Example05/shader/phong.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_program, (const GLUSchar**) &vertexSource.text, 0, 0, 0, (const GLUSchar**) &fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_projectionMatrixLocation = glGetUniformLocation(g_program.program, "u_projectionMatrix");
g_modelViewMatrixLocation = glGetUniformLocation(g_program.program, "u_modelViewMatrix");
g_normalMatrixLocation = glGetUniformLocation(g_program.program, "u_normalMatrix");
g_light.directionLocation = glGetUniformLocation(g_program.program, "u_light.direction");
g_light.ambientColorLocation = glGetUniformLocation(g_program.program, "u_light.ambientColor");
g_light.diffuseColorLocation = glGetUniformLocation(g_program.program, "u_light.diffuseColor");
g_light.specularColorLocation = glGetUniformLocation(g_program.program, "u_light.specularColor");
g_material.ambientColorLocation = glGetUniformLocation(g_program.program, "u_material.ambientColor");
g_material.diffuseColorLocation = glGetUniformLocation(g_program.program, "u_material.diffuseColor");
g_material.specularColorLocation = glGetUniformLocation(g_program.program, "u_material.specularColor");
g_material.specularExponentLocation = glGetUniformLocation(g_program.program, "u_material.specularExponent");
g_vertexLocation = glGetAttribLocation(g_program.program, "a_vertex");
g_normalLocation = glGetAttribLocation(g_program.program, "a_normal");
//
// Use a helper function to create a sphere.
glusCreateSpheref(&sphere, 0.5f, 32);
g_numberIndices = sphere.numberIndices;
glGenBuffers(1, &g_verticesVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*) sphere.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glBufferData(GL_ARRAY_BUFFER, sphere.numberVertices * 3 * sizeof(GLfloat), (GLfloat*) sphere.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sphere.numberIndices * sizeof(GLuint), (GLuint*) sphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&sphere);
//
glUseProgram(g_program.program);
glGenVertexArrays(1, &g_vao);
glBindVertexArray(g_vao);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesVBO);
glVertexAttribPointer(g_vertexLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsVBO);
glVertexAttribPointer(g_normalLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesVBO);
//
glusLookAtf(viewMatrix, 0.0f, 0.0f, 5.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
// The calculations are done in camera / view space. So pass the view matrix, which is a rigid body transform.
glusMatrixExtract3x3f(normalMatrix, viewMatrix);
glUniformMatrix4fv(g_modelViewMatrixLocation, 1, GL_FALSE, viewMatrix);
glUniformMatrix3fv(g_normalMatrixLocation, 1, GL_FALSE, normalMatrix);
//
glusVectorNormalizef(light.direction);
// Transform light to camera space, as it is currently in world space.
glusMatrixMultiplyVectorf(light.direction, viewMatrix, light.direction);
// Set up light ...
glUniform3fv(g_light.directionLocation, 1, light.direction);
glUniform4fv(g_light.ambientColorLocation, 1, light.ambientColor);
glUniform4fv(g_light.diffuseColorLocation, 1, light.diffuseColor);
glUniform4fv(g_light.specularColorLocation, 1, light.specularColor);
// ... and material values.
glUniform4fv(g_material.ambientColorLocation, 1, material.ambientColor);
glUniform4fv(g_material.diffuseColorLocation, 1, material.diffuseColor);
glUniform4fv(g_material.specularColorLocation, 1, material.specularColor);
glUniform1f(g_material.specularExponentLocation, material.specularExponent);
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
return GLUS_TRUE;
}
GLUSboolean init(GLUSvoid)
{
GLUSshape backgroundSphere;
GLUSshape wavefront;
// 6 sides of diffuse and specular; all roughness levels of specular.
GLUShdrimage image[6 * NUMBER_ROUGHNESS + 6];
// The look up table (LUT) is stored in a raw binary file.
GLUSbinaryfile rawimage;
GLUStextfile vertexSource;
GLUStextfile fragmentSource;
GLchar buffer[27] = "doge2/doge2_POS_X_00_s.hdr";
GLint i, k, m;
//
glusLoadTextFile("../Example33/shader/brdf.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/brdf.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_modelProgram, (const GLchar**)&vertexSource.text, 0, 0, 0, (const GLchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
g_viewProjectionMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_viewProjectionMatrix");
g_modelMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_modelMatrix");
g_normalMatrixModelLocation = glGetUniformLocation(g_modelProgram.program, "u_normalMatrix");
g_eyeModelLocation = glGetUniformLocation(g_modelProgram.program, "u_eye");
g_textureSpecularModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureSpecular");
g_textureDiffuseModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureDiffuse");
g_textureLUTModelLocation = glGetUniformLocation(g_modelProgram.program, "u_textureLUT");
g_colorMaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_colorMaterial");
g_roughnessMaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_roughnessMaterial");
g_roughnessScaleModelLocation = glGetUniformLocation(g_modelProgram.program, "u_roughnessScale");
g_R0MaterialModelLocation = glGetUniformLocation(g_modelProgram.program, "u_R0Material");
g_vertexModelLocation = glGetAttribLocation(g_modelProgram.program, "a_vertex");
g_normalModelLocation = glGetAttribLocation(g_modelProgram.program, "a_normal");
//
glusLoadTextFile("../Example33/shader/fullscreen.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/fullscreen.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_fullscreenProgram, (const GLchar**)&vertexSource.text, 0, 0, 0, (const GLchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_framebufferTextureFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_framebufferTexture");
g_msaaSamplesFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_msaaSamples");
g_exposureFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_exposure");
g_gammaFullscreenLocation = glGetUniformLocation(g_fullscreenProgram.program, "u_gamma");
//
//
glusLoadTextFile("../Example33/shader/background.vert.glsl", &vertexSource);
glusLoadTextFile("../Example33/shader/background.frag.glsl", &fragmentSource);
glusBuildProgramFromSource(&g_backgroundProgram, (const GLUSchar**)&vertexSource.text, 0, 0, 0, (const GLUSchar**)&fragmentSource.text);
glusDestroyTextFile(&vertexSource);
glusDestroyTextFile(&fragmentSource);
//
g_viewProjectionMatrixBackgroundLocation = glGetUniformLocation(g_backgroundProgram.program, "u_viewProjectionMatrix");
g_textureBackgroundLocation = glGetUniformLocation(g_backgroundProgram.program, "u_texture");
g_vertexBackgroundLocation = glGetAttribLocation(g_backgroundProgram.program, "a_vertex");
//
// Setting up the full screen frame buffer.
//
glGenTextures(1, &g_fullscreenTexture);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, g_fullscreenTexture);
// Create MSAA texture.
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, MSAA_SAMPLES, GL_RGB32F, SCREEN_WIDTH, SCREEN_HEIGHT, GL_TRUE);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, 0);
// No need to access the depth buffer, so a render buffer is sufficient.
glGenRenderbuffers(1, &g_fullscreenDepthRenderbuffer);
glBindRenderbuffer(GL_RENDERBUFFER, g_fullscreenDepthRenderbuffer);
glRenderbufferStorageMultisample(GL_RENDERBUFFER, MSAA_SAMPLES, GL_DEPTH_COMPONENT, SCREEN_WIDTH, SCREEN_HEIGHT);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
//
glGenFramebuffers(1, &g_fullscreenFBO);
glBindFramebuffer(GL_FRAMEBUFFER, g_fullscreenFBO);
// Attach the color buffer ...
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D_MULTISAMPLE, g_fullscreenTexture, 0);
// ... and the depth buffer.
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, g_fullscreenDepthRenderbuffer);
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
{
printf("GL_FRAMEBUFFER_COMPLETE error 0x%x", glCheckFramebufferStatus(GL_FRAMEBUFFER));
return GLUS_FALSE;
}
glBindFramebuffer(GL_FRAMEBUFFER, 0);
//
//
//
for (i = 0; i < 2; i++)
{
if (i == 0)
{
buffer[21] = 's';
}
else
{
buffer[21] = 'd';
}
for (k = 0; k < NUMBER_ROUGHNESS; k++)
{
if (i == 1 && k > 0)
{
continue;
}
buffer[18] = '0' + k / 10;
buffer[19] = '0' + k % 10;
for (m = 0; m < 6; m++)
{
if (m % 2 == 0)
{
buffer[12] = 'P';
buffer[13] = 'O';
buffer[14] = 'S';
}
else
{
buffer[12] = 'N';
buffer[13] = 'E';
buffer[14] = 'G';
}
switch (m)
{
case 0:
case 1:
buffer[16] = 'X';
break;
case 2:
case 3:
buffer[16] = 'Y';
break;
case 4:
case 5:
buffer[16] = 'Z';
break;
}
printf("Loading '%s' ...", buffer);
if (!glusLoadHdrImage(buffer, &image[i*NUMBER_ROUGHNESS*6 + k*6 + m]))
{
printf(" error!\n");
continue;
}
printf(" done.\n");
}
}
}
glGenTextures(1, &g_texture[0]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, g_texture[0]);
glTexImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, GL_RGB32F, image[0].width, image[0].height, 6*NUMBER_ROUGHNESS, 0, GL_RGB, GL_FLOAT, 0);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage3D()");
for (i = 0; i < NUMBER_ROUGHNESS; i++)
{
for (k = 0; k < 6; k++)
{
glTexSubImage3D(GL_TEXTURE_CUBE_MAP_ARRAY, 0, 0, 0, 6*i + k, image[i*6 + k].width, image[i*6 + k].height, 1, image[i*6 + k].format, GL_FLOAT, image[i*6 + k].data);
glusLogPrintError(GLUS_LOG_INFO, "glTexSubImage3D() %d %d", i, k);
}
}
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP_ARRAY, 0);
//
glGenTextures(1, &g_texture[1]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_CUBE_MAP, g_texture[1]);
for (i = 0; i < 6; i++)
{
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, image[i + 6*NUMBER_ROUGHNESS].format, image[i + 6*NUMBER_ROUGHNESS].width, image[i + 6*NUMBER_ROUGHNESS].height, 0, image[i + 6*NUMBER_ROUGHNESS].format, GL_FLOAT, image[i + 6*NUMBER_ROUGHNESS].data);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage2D() %d", i);
}
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
//
printf("Loading 'doge2/EnvironmentBRDF_1024.data' ...");
if (!glusLoadBinaryFile("doge2/EnvironmentBRDF_1024.data", &rawimage))
{
printf(" error!\n");
}
else
{
printf(" done.\n");
}
glGenTextures(1, &g_texture[2]);
glActiveTexture(GL_TEXTURE2);
glBindTexture(GL_TEXTURE_2D, g_texture[2]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RG32F, 1024, 1024, 0, GL_RG, GL_FLOAT, (GLfloat*)rawimage.binary);
glusLogPrintError(GLUS_LOG_INFO, "glTexImage2D()");
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindTexture(GL_TEXTURE_2D, 0);
glusDestroyBinaryFile(&rawimage);
//
for (i = 0; i < 2; i++)
{
for (k = 0; k < NUMBER_ROUGHNESS; k++)
{
if (i == 1 && k > 0)
{
continue;
}
for (m = 0; m < 6; m++)
{
glusDestroyHdrImage(&image[i*NUMBER_ROUGHNESS*6 + k*6 + m]);
}
}
}
//
glusCreateSpheref(&backgroundSphere, 500.0f, 32);
g_numberIndicesBackground = backgroundSphere.numberIndices;
glGenBuffers(1, &g_verticesBackgroundVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glBufferData(GL_ARRAY_BUFFER, backgroundSphere.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)backgroundSphere.vertices, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glGenBuffers(1, &g_indicesBackgroundVBO);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, backgroundSphere.numberIndices * sizeof(GLuint), (GLuint*)backgroundSphere.indices, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glusDestroyShapef(&backgroundSphere);
//
//
// Use a helper function to load an wavefront object file.
glusLoadObjFile("venusm.obj", &wavefront);
g_numberVerticesModel = wavefront.numberVertices;
glGenBuffers(1, &g_verticesModelVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesModelVBO);
glBufferData(GL_ARRAY_BUFFER, wavefront.numberVertices * 4 * sizeof(GLfloat), (GLfloat*)wavefront.vertices, GL_STATIC_DRAW);
glGenBuffers(1, &g_normalsModelVBO);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsModelVBO);
glBufferData(GL_ARRAY_BUFFER, wavefront.numberVertices * 3 * sizeof(GLfloat), (GLfloat*)wavefront.normals, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glusDestroyShapef(&wavefront);
//
glUseProgram(g_modelProgram.program);
glUniform4fv(g_eyeModelLocation, 1, g_eye);
glUniform1i(g_textureSpecularModelLocation, 0);
glUniform1i(g_textureDiffuseModelLocation, 1);
glUniform1i(g_textureLUTModelLocation, 2);
glUniform1f(g_roughnessScaleModelLocation, (GLfloat)(NUMBER_ROUGHNESS - 1));
glGenVertexArrays(1, &g_modelVAO);
glBindVertexArray(g_modelVAO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesModelVBO);
glVertexAttribPointer(g_vertexModelLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexModelLocation);
glBindBuffer(GL_ARRAY_BUFFER, g_normalsModelVBO);
glVertexAttribPointer(g_normalModelLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_normalModelLocation);
//
glUseProgram(g_fullscreenProgram.program);
glUniform1i(g_framebufferTextureFullscreenLocation, 0);
glUniform1i(g_msaaSamplesFullscreenLocation, MSAA_SAMPLES);
glGenVertexArrays(1, &g_fullscreenVAO);
glBindVertexArray(g_fullscreenVAO);
//
glUseProgram(g_backgroundProgram.program);
glUniform1i(g_textureBackgroundLocation, 0);
glGenVertexArrays(1, &g_backgroundVAO);
glBindVertexArray(g_backgroundVAO);
glBindBuffer(GL_ARRAY_BUFFER, g_verticesBackgroundVBO);
glVertexAttribPointer(g_vertexBackgroundLocation, 4, GL_FLOAT, GL_FALSE, 0, 0);
glEnableVertexAttribArray(g_vertexBackgroundLocation);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_indicesBackgroundVBO);
//
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_CULL_FACE);
return GLUS_TRUE;
}
