本文整理汇总了C++中mat4::perspective方法的典型用法代码示例。如果您正苦于以下问题：C++ mat4::perspective方法的具体用法？C++ mat4::perspective怎么用？C++ mat4::perspective使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类mat4的用法示例。
在下文中一共展示了mat4::perspective方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: idle
void GLAppMain::idle()
{
float ratio = (float)window_width / (float) window_height;
projection.perspective(45,ratio,1,10000);
vec3 lat = vec3(0,1,0)^lookat;
lat.normalize();
// keyboard events
if(keys[KEY_ESC]) exit();
if(keys[' ']){
goon = !goon;
keys[' '] = 0;
}
if(keys[KEY_UP]) {
pos += lookat*(50/fps);
keys[KEY_UP] = 0;
}
if(keys[KEY_DOWN]) {
pos -= lookat*(50/fps);
keys[KEY_DOWN] = 0;
}
if(keys[KEY_LEFT]) {
pos += lat*(50/fps);
keys[KEY_LEFT] = 0;
}
if(keys[KEY_RIGHT]) {
pos -= lat*(50/fps);
keys[KEY_RIGHT] = 0;
}
static int look = 0;
if(!look && mouse_button & BUTTON_LEFT) {
setCursor(window_width / 2,window_height / 2);
mouse_x = window_width / 2;
mouse_y = window_height / 2;
look = 1;
}
if(mouse_button & BUTTON_RIGHT) look = 0;
if(look) {
showCursor(0);
mat3 m;
m.rotate( lat, (mouse_y - window_height / 2) * 0.2 );
lookat = m*lookat;
m.rotate_y( -(mouse_x - window_width / 2) * 0.2 );
lookat = m*lookat;
setCursor(window_width / 2,window_height / 2);
} else showCursor(1);
vec3 up = lookat^lat;
up.normalize();
modelview.look_at(pos,pos+lookat,up);
}示例2: opengl_init
//.........这里部分代码省略.........
t3DObject* p = &g_3DModel.pObject[0];
LOGI("---------- 0");
model_mesh.loc_view_matrix = glGetUniformLocation(model_mesh.program->get_program(), "view_matrix");
model_mesh.loc_view_proj_matrix = glGetUniformLocation(model_mesh.program->get_program(), "view_proj_matrix");
model_mesh.texs_locs[0] = glGetUniformLocation(model_mesh.program->get_program(), "base");
LOGI("---------- 1");
model_mesh.texs_idxs[0] = create_texture("media/Wood.tga");
LOGI("---------- 2");
glGenBuffers(4, model_mesh.attribute_vbos);
LOGI("---------- 3");
glBindBuffer(GL_ARRAY_BUFFER, model_mesh.attribute_vbos[static_mesh::POSITION]);
glBufferData(GL_ARRAY_BUFFER, 4*3*p->numOfVerts, &(p->pVerts[0].x), GL_STATIC_DRAW);
LOGI("---------- 4");
glBindBuffer(GL_ARRAY_BUFFER, model_mesh.attribute_vbos[static_mesh::NORMAL]);
glBufferData(GL_ARRAY_BUFFER, 4*3*p->numOfVerts, &(p->pNormals[0].x), GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, model_mesh.attribute_vbos[static_mesh::TEXCOORD]);
glBufferData(GL_ARRAY_BUFFER, 4*2*p->numOfVerts, &(p->pTexVerts[0].x), GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, model_mesh.attribute_vbos[static_mesh::INDEX]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 2*3*p->numOfFaces, &(p->pFaces[0].vertIndex[0]), GL_STATIC_DRAW);
LOGI("---------- 5");
model_mesh.num_faces = p->numOfFaces;
}
/* init background *********************************************************************************/
if(blur_mesh.program == NULL)
{
float *pos_data;
GLushort *inds;
GLuint num_ves;
blur_mesh.program = new shader_program;
if(!blur_mesh.program->build(vs.load_shader_source("media/quad.vs"),ps.load_shader_source("media/quad.ps")))
{
LOGI("build shader failed");
return;
}
blur_mesh.texs_idxs[0] = render_rt;
blur_mesh.texs_locs[0] = glGetUniformLocation(blur_mesh.program->get_program(), "RT");
shape::create_plane(1, &pos_data, NULL, NULL, &inds, num_ves);
// blur_mesh.loc_view_proj_matrix = glGetUniformLocation(blur_mesh.program->get_program(), "view_proj_matrix");
blur_mesh.attribute_locations[static_mesh::POSITION] = glGetAttribLocation(blur_mesh.program->get_program(),"rm_Vertex");
glGenBuffers(1, &blur_mesh.attribute_vbos[static_mesh::POSITION]);
glGenBuffers(1, &blur_mesh.attribute_vbos[static_mesh::INDEX]);
glBindBuffer(GL_ARRAY_BUFFER, blur_mesh.attribute_vbos[static_mesh::POSITION]);
glBufferData(GL_ARRAY_BUFFER, num_ves*4*3, pos_data, GL_STATIC_DRAW);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, blur_mesh.attribute_vbos[static_mesh::INDEX]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, 6*2*3, inds, GL_STATIC_DRAW);
blur_mesh.num_faces = 6;
delete []pos_data;
delete []inds;
}
if(combine_mesh.program == NULL)
{
float *pos_data;
GLushort *inds;
GLuint num_ves;
combine_mesh = blur_mesh;
combine_mesh.program = new shader_program;
if(!combine_mesh.program->build(vs.load_shader_source("media/combine.vs"),ps.load_shader_source("media/combine.ps")))
{
LOGI("build shader failed");
return;
}
combine_mesh.texs_idxs[0] = render_rt;
combine_mesh.texs_locs[0] = glGetUniformLocation(combine_mesh.program->get_program(), "RT");
combine_mesh.texs_idxs[1] = blur_rt;
combine_mesh.texs_locs[1] = glGetUniformLocation(combine_mesh.program->get_program(), "Blur1");
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
width = w;
height = h;
quad_proj_matrix.perspective(60, (float)w/h, 1.0f,3000.0f);
}