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https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-05 19:19:39 -06:00
Only render with a two pass solution if the model is not opague
This commit is contained in:
Malin E
@@ -681,112 +681,119 @@ void RenderableModel::render(const RenderData& data, RendererTasks&) {
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constexpr int res = 2880;
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const double maxDistance = res * boundingSphere() / tfov;
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if (distanceToCamera < maxDistance) {
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_program->activate();
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// Don't render if model is too far away
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if (distanceToCamera >= maxDistance) {
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return;
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}
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// Model transform and view transform needs to be in double precision
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const glm::dmat4 modelTransform =
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glm::translate(glm::dmat4(1.0), data.modelTransform.translation) *
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glm::dmat4(data.modelTransform.rotation) *
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glm::scale(glm::dmat4(1.0), glm::dvec3(data.modelTransform.scale)) *
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glm::scale(_modelTransform.value(), glm::dvec3(_modelScale));
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const glm::dmat4 modelViewTransform = data.camera.combinedViewMatrix() *
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modelTransform;
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_program->activate();
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int nLightSources = 0;
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_lightIntensitiesBuffer.resize(_lightSources.size());
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_lightDirectionsViewSpaceBuffer.resize(_lightSources.size());
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for (const std::unique_ptr<LightSource>& lightSource : _lightSources) {
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if (!lightSource->isEnabled()) {
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continue;
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}
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_lightIntensitiesBuffer[nLightSources] = lightSource->intensity();
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_lightDirectionsViewSpaceBuffer[nLightSources] =
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lightSource->directionViewSpace(data);
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// Model transform and view transform needs to be in double precision
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const glm::dmat4 modelTransform =
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glm::translate(glm::dmat4(1.0), data.modelTransform.translation) *
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glm::dmat4(data.modelTransform.rotation) *
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glm::scale(glm::dmat4(1.0), glm::dvec3(data.modelTransform.scale)) *
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glm::scale(_modelTransform.value(), glm::dvec3(_modelScale));
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const glm::dmat4 modelViewTransform = data.camera.combinedViewMatrix() *
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modelTransform;
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++nLightSources;
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int nLightSources = 0;
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_lightIntensitiesBuffer.resize(_lightSources.size());
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_lightDirectionsViewSpaceBuffer.resize(_lightSources.size());
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for (const std::unique_ptr<LightSource>& lightSource : _lightSources) {
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if (!lightSource->isEnabled()) {
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continue;
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}
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_lightIntensitiesBuffer[nLightSources] = lightSource->intensity();
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_lightDirectionsViewSpaceBuffer[nLightSources] =
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lightSource->directionViewSpace(data);
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_program->setUniform(
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_uniformCache.nLightSources,
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nLightSources
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);
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_program->setUniform(
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_uniformCache.lightIntensities,
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_lightIntensitiesBuffer
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);
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_program->setUniform(
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_uniformCache.lightDirectionsViewSpace,
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_lightDirectionsViewSpaceBuffer
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);
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_program->setUniform(
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_uniformCache.modelViewTransform,
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glm::mat4(modelViewTransform)
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);
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++nLightSources;
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}
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glm::dmat4 normalTransform = glm::transpose(glm::inverse(modelViewTransform));
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_program->setUniform(
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_uniformCache.nLightSources,
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nLightSources
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);
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_program->setUniform(
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_uniformCache.lightIntensities,
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_lightIntensitiesBuffer
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);
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_program->setUniform(
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_uniformCache.lightDirectionsViewSpace,
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_lightDirectionsViewSpaceBuffer
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);
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_program->setUniform(
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_uniformCache.modelViewTransform,
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glm::mat4(modelViewTransform)
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);
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_program->setUniform(
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_uniformCache.normalTransform,
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glm::mat4(normalTransform)
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);
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glm::dmat4 normalTransform = glm::transpose(glm::inverse(modelViewTransform));
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_program->setUniform(
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_uniformCache.projectionTransform,
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data.camera.projectionMatrix()
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);
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_program->setUniform(_uniformCache.ambientIntensity, _ambientIntensity);
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_program->setUniform(_uniformCache.diffuseIntensity, _diffuseIntensity);
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_program->setUniform(_uniformCache.specularIntensity, _specularIntensity);
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_program->setUniform(_uniformCache.performShading, _performShading);
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_program->setUniform(
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_uniformCache.normalTransform,
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glm::mat4(normalTransform)
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);
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// Configure blending
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glEnablei(GL_BLEND, 0);
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switch (_blendingFuncOption) {
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case DefaultBlending:
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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break;
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case AdditiveBlending:
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glBlendFunc(GL_ONE, GL_ONE);
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break;
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case PolygonBlending:
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glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
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break;
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case ColorAddingBlending:
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glBlendFunc(GL_SRC_COLOR, GL_DST_COLOR);
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break;
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};
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_program->setUniform(
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_uniformCache.projectionTransform,
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data.camera.projectionMatrix()
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);
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_program->setUniform(_uniformCache.ambientIntensity, _ambientIntensity);
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_program->setUniform(_uniformCache.diffuseIntensity, _diffuseIntensity);
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_program->setUniform(_uniformCache.specularIntensity, _specularIntensity);
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_program->setUniform(_uniformCache.performShading, _performShading);
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if (!_enableDepthTest) {
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glDisable(GL_DEPTH_TEST);
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}
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if (!_enableFaceCulling) {
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glDisable(GL_CULL_FACE);
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}
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if (!_enableFaceCulling) {
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glDisable(GL_CULL_FACE);
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}
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// Configure blending
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glEnablei(GL_BLEND, 0);
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switch (_blendingFuncOption) {
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case DefaultBlending:
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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break;
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case AdditiveBlending:
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glBlendFunc(GL_ONE, GL_ONE);
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break;
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case PolygonBlending:
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glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
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break;
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case ColorAddingBlending:
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glBlendFunc(GL_SRC_COLOR, GL_DST_COLOR);
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break;
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};
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if (!_enableDepthTest) {
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glDisable(GL_DEPTH_TEST);
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}
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// Only render two pass if the model is in any way transparent
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bool shouldRenderTwise = false;
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const float o = opacity();
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if ((o >= 0.f && o < 1.f) || _geometry->isTransparent()) {
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setRenderBin(Renderable::RenderBin::PostDeferredTransparent);
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shouldRenderTwise = true;
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}
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else {
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setRenderBin(_originalRenderBin);
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}
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if (!shouldRenderTwise) {
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_geometry->render(*_program);
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}
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else {
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// Prepare framebuffer
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GLint defaultFBO = ghoul::opengl::FramebufferObject::getActiveObject();
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glBindFramebuffer(GL_FRAMEBUFFER, _framebuffer);
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glDrawBuffers(3, ColorAttachmentArray);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glClearBufferfv(GL_COLOR, 1, glm::value_ptr(glm::vec4(0.f, 0.f, 0.f, 0.f)));
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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// Render Pass 1
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// Render all parts of the model into the new framebuffer without opacity
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const float o = opacity();
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if ((o >= 0.f && o < 1.f) || !_enableDepthTest || _geometry->isTransparent()) {
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setRenderBin(Renderable::RenderBin::PostDeferredTransparent);
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}
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else {
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setRenderBin(_originalRenderBin);
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}
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_geometry->render(*_program);
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if (!_enableFaceCulling) {
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glEnable(GL_CULL_FACE);
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}
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_program->deactivate();
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// Render pass 2
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@@ -818,7 +825,7 @@ void RenderableModel::render(const RenderData& data, RendererTasks&) {
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global::renderEngine->renderer()->additionalColorTexture2()
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);
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_quadProgram->setUniform(
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_uniformOpacityCache.positionTexture,
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_uniformOpacityCache.positionTexture,
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positionTextureUnit
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);
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@@ -842,12 +849,20 @@ void RenderableModel::render(const RenderData& data, RendererTasks&) {
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glBindVertexArray(_quadVao);
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glDrawArrays(GL_TRIANGLES, 0, 6);
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_quadProgram->deactivate();
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// Reset
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global::renderEngine->openglStateCache().resetBlendState();
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global::renderEngine->openglStateCache().resetDepthState();
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glActiveTexture(GL_TEXTURE0);
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}
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// Reset
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if (!_enableFaceCulling) {
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glEnable(GL_CULL_FACE);
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}
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if (!_enableDepthTest) {
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glEnable(GL_DEPTH_TEST);
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}
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global::renderEngine->openglStateCache().resetBlendState();
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global::renderEngine->openglStateCache().resetDepthState();
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glActiveTexture(GL_TEXTURE0);
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}
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void RenderableModel::update(const UpdateData& data) {
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