bool
GroundRenderer::setup(const mat4& projection, unsigned int texture)
{
projection_ = projection;
texture_ = texture;
// Program set up
static const vec4 materialDiffuse(0.3f, 0.3f, 0.3f, 1.0f);
static const string vtx_shader_filename(GLMARK_DATA_PATH"/shaders/shadow.vert");
static const string frg_shader_filename(GLMARK_DATA_PATH"/shaders/shadow.frag");
ShaderSource vtx_source(vtx_shader_filename);
ShaderSource frg_source(frg_shader_filename);
vtx_source.add_const("MaterialDiffuse", materialDiffuse);
if (!Scene::load_shaders_from_strings(program_, vtx_source.str(), frg_source.str())) {
return false;
}
positionLocation_ = program_["position"].location();
// Set up the position data for our "quad".
vertices_.push_back(vec2(-1.0, -1.0));
vertices_.push_back(vec2(1.0, -1.0));
vertices_.push_back(vec2(-1.0, 1.0));
vertices_.push_back(vec2(1.0, 1.0));
// Set up the VBO and stash our position data in it.
glGenBuffers(1, &bufferObject_);
glBindBuffer(GL_ARRAY_BUFFER, bufferObject_);
glBufferData(GL_ARRAY_BUFFER, vertices_.size() * sizeof(vec2),
&vertices_.front(), GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// Set up the light matrix with a bias that will convert values
// in the range of [-1, 1] to [0, 1)], then add in the projection
// and the "look at" matrix from the light position.
light_ *= LibMatrix::Mat4::translate(0.5, 0.5, 0.5);
light_ *= LibMatrix::Mat4::scale(0.5, 0.5, 0.5);
light_ *= projection_;
light_ *= LibMatrix::Mat4::lookAt(lightPosition.x(), lightPosition.y(), lightPosition.z(),
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
return true;
}
bool
GradientRenderer::init()
{
// Program set up
static const string vtx_shader_filename(GLMARK_DATA_PATH"/shaders/gradient.vert");
static const string frg_shader_filename(GLMARK_DATA_PATH"/shaders/gradient.frag");
ShaderSource vtx_source(vtx_shader_filename);
ShaderSource frg_source(frg_shader_filename);
if (!Scene::load_shaders_from_strings(program_, vtx_source.str(),
frg_source.str()))
{
return false;
}
positionLocation_ = program_["position"].location();
uvLocation_ = program_["uvIn"].location();
// Set up the position data for our "quad".
vertices_.push_back(vec2(-1.0, -1.0));
vertices_.push_back(vec2(1.0, -1.0));
vertices_.push_back(vec2(-1.0, 1.0));
vertices_.push_back(vec2(1.0, 1.0));
uvs_.push_back(vec2(1.0, 1.0));
uvs_.push_back(vec2(1.0, 1.0));
uvs_.push_back(vec2(0.0, 0.0));
uvs_.push_back(vec2(0.0, 0.0));
uvOffset_ = vertices_.size() * sizeof(vec2);
// Set up the VBO and stash our position data in it.
glGenBuffers(1, &bufferObject_);
glBindBuffer(GL_ARRAY_BUFFER, bufferObject_);
glBufferData(GL_ARRAY_BUFFER, (vertices_.size() + uvs_.size()) * sizeof(vec2),
0, GL_STATIC_DRAW);
glBufferSubData(GL_ARRAY_BUFFER, 0, vertices_.size() * sizeof(vec2),
&vertices_.front());
glBufferSubData(GL_ARRAY_BUFFER, uvOffset_, uvs_.size() * sizeof(vec2),
&uvs_.front());
glBindBuffer(GL_ARRAY_BUFFER, 0);
return true;
}