void GeometryRendererDemo::init() {
AutoEvaluationPipeline::init();
// load textureData from file
cgt::TextureReaderTga trt;
cgt::Texture* campTexture = trt.loadTexture(ShdrMgr.completePath("/modules/vis/sampledata/camplogo.tga"), cgt::Texture::LINEAR);
ImageData* textureData = new ImageData(2, campTexture->getDimensions(), campTexture->getNumChannels());
ImageRepresentationGL::create(textureData, campTexture);
getDataContainer().addData("CampTexture", textureData);
// connect slots
_geometryReader.s_validated.connect(this, &GeometryRendererDemo::onProcessorValidated);
// create Teapot
auto teapot = GeometryDataFactory::createTeapot();
teapot->applyTransformationToVertices(cgt::mat4::createTranslation(cgt::vec3(5.f, 10.f, 5.f)) * cgt::mat4::createScale(cgt::vec3(16.f)));
getDataContainer().addData("teapot", teapot.release());
// create cube
auto cube = GeometryDataFactory::createCube(cgt::Bounds(cgt::vec3(7.f), cgt::vec3(9.f)), cgt::Bounds(cgt::vec3(0.f), cgt::vec3(1.f)));
getDataContainer().addData("cube", cube.release());
// setup pipeline
_geometryReader.p_url.setValue(ShdrMgr.completePath("/modules/vis/sampledata/left_ventricle_mesh.vtk"));
_geometryReader.p_targetImageID.setValue("reader.output");
_lvRenderer.p_geometryID.setValue("reader.output");
_lvRenderer.p_renderTargetID.setValue("lv.render");
_lvRenderer.p_renderMode.selectById("triangles");
_lvRenderer.p_solidColor.setValue(cgt::vec4(0.8f, 0.f, 0.f, .9f));
_teapotRenderer.p_geometryID.setValue("teapot");
_teapotRenderer.p_renderTargetID.setValue("teapot.render");
_teapotRenderer.p_renderMode.selectById("trianglestrip");
_teapotRenderer.p_showWireframe.setValue(false);
_teapotRenderer.p_solidColor.setValue(cgt::vec4(1.f, 0.5f, 0.f, 1.f));
_cubeRenderer.p_geometryID.setValue("cube");
_cubeRenderer.p_renderTargetID.setValue("cube.render");
_cubeRenderer.p_renderMode.selectById("trianglefan");
_cubeRenderer.p_showWireframe.setValue(false);
_cubeRenderer.p_textureID.setValue("CampTexture");
_cubeRenderer.p_coloringMode.selectByOption(GeometryRenderer::TEXTURE_COLOR);
_compositor1.p_firstImageId.setValue("lv.render");
_compositor1.p_secondImageId.setValue("teapot.render");
_compositor1.p_compositingMethod.selectById("depth");
_compositor1.p_targetImageId.setValue("combine1");
_compositor1.p_enableBackground.setValue(false);
_compositor2.p_firstImageId.setValue("combine1");
_compositor2.p_secondImageId.setValue("cube.render");
_compositor2.p_compositingMethod.selectById("depth");
_compositor2.p_targetImageId.setValue("combine2");
_renderTargetID.setValue("combine2");
}
void MeshRenderProcessorGLSR::setNearFarPlane() {
if (!inport_.hasData()) return;
auto geom = inport_.getData();
auto posBuffer =
dynamic_cast<const Vec3BufferRAM*>(geom->getBuffer(0)->getRepresentation<BufferRAM>());
if (posBuffer == nullptr) return;
auto pos = posBuffer->getDataContainer();
if (pos->empty()) return;
float nearDist, farDist;
nearDist = std::numeric_limits<float>::infinity();
farDist = 0;
vec3 nearPos, farPos;
vec3 camPos = (geom->getCoordinateTransformer().getWorldToModelMatrix() *
vec4(camera_.getLookFrom(), 1.0))
.xyz();
for (auto& po : *pos) {
auto d = glm::distance2(po, camPos);
if (d < nearDist) {
nearDist = d;
nearPos = po;
}
if (d > farDist) {
farDist = d;
farPos = po;
}
}
mat4 m = camera_.viewMatrix() * geom->getCoordinateTransformer().getModelToWorldMatrix();
camera_.setNearPlaneDist(std::max(0.0f, 0.99f * std::abs((m * vec4(nearPos, 1.0f)).z)));
camera_.setFarPlaneDist(std::max(0.0f, 1.01f * std::abs((m * vec4(farPos, 1.0f)).z)));
}
void ViscontestDemo::executePipeline() {
AutoEvaluationPipeline::executePipeline();
_horizontalSplitter.render(getDataContainer());
}