void paintGL(){
constexpr static float clearColor[] = \
{0.5f,0.3f,0.3f,1};
gl::NamedFrameBufferObject root;
root.clearColor(clearColor);
root.clearDepth(1);
program.use();
program.bindFrameBuffer(root);
program.bindVertexArray(vao);
program.setUniformMatrix4fv(
1, 1, false, &(modelScale[0][0]));
program.setUniformMatrix4fv(
3, 1, false, &(normalMatrix[0][0]));
using namespace gl::DrawElements;
Pack pack(
Mode::TRIANGLES,
indexCount,
Type::UNSIGNED_INT,
nullptr);
gl::draw(pack);
}
void initializeGL(){
glClearDepth(1);
glClearColor(0,0,0,0);
#ifdef _DEBUG_OPENGL_QT_
QGLDebugTool::setSimpleCallbackFunction();
QGLDebugTool::test();
#endif
gl::createBuffers(1, &pointsBuffer);
gl::createBuffers(1, &colorBuffer);
gl::createVertexArrays(1,&vao);
constexpr gl::Float points[] = {
-0.0f,+0.5f, -0.1f,1,
-0.5f,-0.5f, -0.1f,1,
+0.5f,-0.5f, -0.1f,1,
+0.2f,+0.5f, -0.5f,1,
-0.3f,-0.5f, -0.5f,1,
+0.7f,-0.5f, -0.5f,1,
};
constexpr gl::Float colors[] = {
1,0,0,1,
0,1,0,1,
0,0,1,1,
1,1,0,1,
0,1,1,1,
1,0,1,1,
};
gl::bufferData(pointsBuffer,sizeof(points),points);
gl::bufferData(colorBuffer,sizeof(colors), colors);
vao.bindBuffer(0, pointsBuffer);
vao.bindBuffer(1, colorBuffer);
constexpr char vs[] = R"(#version 450
layout(location=0) in vec4 ipos;
layout(location=1) in vec4 icol;
layout(location=2) uniform mat4 pMatrix;
out vec4 color;
void main(){
gl_Position = pMatrix*ipos;
color = icol;
}
)";
constexpr char fs[] = R"(#version 450
in vec4 color;
out vec4 fcolor;
void main(){
fcolor = color;
}
)";
program = gl::VFProgramLoadSources(vs,fs);
pMatrix = glm::lookAt(
glm::vec3(0, 0, 1),
glm::vec3(0, 0, 0),
glm::vec3(0, 1, 0)
);
pMatrix =
glm::ortho<float>(-1, 1, -1, 1, 0, 2)*pMatrix;
std::cout << pMatrix << std::endl;
program.setUniformMatrix4fv(2, 1, false,&(pMatrix[0][0]));
gl::enableDepthTest();
}