void DefaultPointHandleRenderer::render(Vbo& vbo, RenderContext& context) {
const Vec4f::List& positionList = positions();
if (positionList.empty())
return;
SetVboState activateVbo(vbo, Vbo::VboActive);
if (m_vertexArray == NULL) {
Vec3f::List vertices = sphere();
unsigned int vertexCount = static_cast<unsigned int>(vertices.size());
m_vertexArray = new VertexArray(vbo, GL_TRIANGLES, vertexCount,
Attribute::position3f());
SetVboState mapVbo(vbo, Vbo::VboMapped);
Vec3f::List::const_iterator vIt, vEnd;
for (vIt = vertices.begin(), vEnd = vertices.end(); vIt != vEnd; ++vIt) {
const Vec3f& vertex = *vIt;
m_vertexArray->addAttribute(vertex);
}
}
Renderer::ActivateShader shader(context.shaderManager(), Renderer::Shaders::PointHandleShader);
shader.currentShader().setUniformVariable("Color", color());
shader.currentShader().setUniformVariable("CameraPosition", context.camera().position());
shader.currentShader().setUniformVariable("ScalingFactor", scalingFactor());
shader.currentShader().setUniformVariable("MaximumDistance", maximumDistance());
Vec4f::List::const_iterator pIt, pEnd;
for (pIt = positionList.begin(), pEnd = positionList.end(); pIt != pEnd; ++pIt) {
const Vec4f& position = *pIt;
shader.currentShader().setUniformVariable("Position", position);
m_vertexArray->render();
}
}
void SphereFigure::render(Vbo& vbo, RenderContext& context) {
SetVboState activateVbo(vbo, Vbo::VboActive);
if (m_vertexArray == NULL) {
Vec3f::List vertices = sphere(m_radius, m_iterations);
unsigned int vertexCount = static_cast<unsigned int>(vertices.size());
m_vertexArray = new VertexArray(vbo, GL_TRIANGLES, vertexCount,
Attribute::position3f());
SetVboState mapVbo(vbo, Vbo::VboMapped);
Vec3f::List::iterator it, end;
for (it = vertices.begin(), end = vertices.end(); it != end; ++it)
m_vertexArray->addAttribute(*it);
}
assert(m_vertexArray != NULL);
m_vertexArray->render();
}
void InstancedPointHandleRenderer::render(Vbo& vbo, RenderContext& context) {
SetVboState activateVbo(vbo, Vbo::VboActive);
if (!valid()) {
delete m_vertexArray;
m_vertexArray = NULL;
const Vec4f::List& positionList = positions();
if (!positionList.empty()) {
Vec3f::List vertices = sphere();
unsigned int vertexCount = static_cast<unsigned int>(vertices.size());
unsigned int instanceCount = static_cast<unsigned int>(positionList.size());
m_vertexArray = new InstancedVertexArray(vbo, GL_TRIANGLES, vertexCount, instanceCount,
Attribute::position3f());
SetVboState mapVbo(vbo, Vbo::VboMapped);
Vec3f::List::iterator it, end;
for (it = vertices.begin(), end = vertices.end(); it != end; ++it)
m_vertexArray->addAttribute(*it);
m_vertexArray->addAttributeArray("position", positionList);
}
validate();
}
if (m_vertexArray != NULL) {
Renderer::ActivateShader shader(context.shaderManager(), Renderer::Shaders::InstancedPointHandleShader);
shader.currentShader().setUniformVariable("Color", color());
shader.currentShader().setUniformVariable("CameraPosition", context.camera().position());
shader.currentShader().setUniformVariable("ScalingFactor", scalingFactor());
shader.currentShader().setUniformVariable("MaximumDistance", maximumDistance());
m_vertexArray->render(shader.currentShader());
}
}