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);
        }
示例#2
0
    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();
	}