void ImageOverlay::render(RenderArgs* args) {
if (!_isLoaded && _renderImage) {
_isLoaded = true;
_texture = DependencyManager::get<TextureCache>()->getTexture(_imageURL);
}
// If we are not visible or loaded, return. If we are trying to render an
// image but the texture hasn't loaded, return.
if (!_visible || !_isLoaded || (_renderImage && !_texture->isLoaded())) {
return;
}
if (_renderImage) {
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, _texture->getID());
}
const float MAX_COLOR = 255.0f;
xColor color = getColor();
float alpha = getAlpha();
glm::vec4 quadColor(color.red / MAX_COLOR, color.green / MAX_COLOR, color.blue / MAX_COLOR, alpha);
int left = _bounds.left();
int right = _bounds.right() + 1;
int top = _bounds.top();
int bottom = _bounds.bottom() + 1;
glm::vec2 topLeft(left, top);
glm::vec2 bottomRight(right, bottom);
// if for some reason our image is not over 0 width or height, don't attempt to render the image
if (_renderImage) {
float imageWidth = _texture->getWidth();
float imageHeight = _texture->getHeight();
if (imageWidth > 0 && imageHeight > 0) {
QRect fromImage;
if (_wantClipFromImage) {
float scaleX = imageWidth / _texture->getOriginalWidth();
float scaleY = imageHeight / _texture->getOriginalHeight();
fromImage.setX(scaleX * _fromImage.x());
fromImage.setY(scaleY * _fromImage.y());
fromImage.setWidth(scaleX * _fromImage.width());
fromImage.setHeight(scaleY * _fromImage.height());
}
else {
fromImage.setX(0);
fromImage.setY(0);
fromImage.setWidth(imageWidth);
fromImage.setHeight(imageHeight);
}
float x = fromImage.x() / imageWidth;
float y = fromImage.y() / imageHeight;
float w = fromImage.width() / imageWidth; // ?? is this what we want? not sure
float h = fromImage.height() / imageHeight;
glm::vec2 texCoordTopLeft(x, y);
glm::vec2 texCoordBottomRight(x + w, y + h);
DependencyManager::get<GeometryCache>()->renderQuad(topLeft, bottomRight, texCoordTopLeft, texCoordBottomRight, quadColor);
} else {
DependencyManager::get<GeometryCache>()->renderQuad(topLeft, bottomRight, quadColor);
}
glDisable(GL_TEXTURE_2D);
} else {
DependencyManager::get<GeometryCache>()->renderQuad(topLeft, bottomRight, quadColor);
}
}
void Antialiasing::run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext, const gpu::FramebufferPointer& sourceBuffer) {
assert(renderContext->args);
assert(renderContext->args->hasViewFrustum());
RenderArgs* args = renderContext->args;
if (args->_renderMode == RenderArgs::MIRROR_RENDER_MODE) {
return;
}
gpu::doInBatch(args->_context, [&](gpu::Batch& batch) {
batch.enableStereo(false);
batch.setViewportTransform(args->_viewport);
// FIXME: NEED to simplify that code to avoid all the GeometryCahce call, this is purely pixel manipulation
auto framebufferCache = DependencyManager::get<FramebufferCache>();
QSize framebufferSize = framebufferCache->getFrameBufferSize();
float fbWidth = framebufferSize.width();
float fbHeight = framebufferSize.height();
// float sMin = args->_viewport.x / fbWidth;
// float sWidth = args->_viewport.z / fbWidth;
// float tMin = args->_viewport.y / fbHeight;
// float tHeight = args->_viewport.w / fbHeight;
glm::mat4 projMat;
Transform viewMat;
args->getViewFrustum().evalProjectionMatrix(projMat);
args->getViewFrustum().evalViewTransform(viewMat);
batch.setProjectionTransform(projMat);
batch.setViewTransform(viewMat, true);
batch.setModelTransform(Transform());
// FXAA step
getAntialiasingPipeline();
batch.setResourceTexture(0, sourceBuffer->getRenderBuffer(0));
batch.setFramebuffer(_antialiasingBuffer);
batch.setPipeline(getAntialiasingPipeline());
// initialize the view-space unpacking uniforms using frustum data
float left, right, bottom, top, nearVal, farVal;
glm::vec4 nearClipPlane, farClipPlane;
args->getViewFrustum().computeOffAxisFrustum(left, right, bottom, top, nearVal, farVal, nearClipPlane, farClipPlane);
// float depthScale = (farVal - nearVal) / farVal;
// float nearScale = -1.0f / nearVal;
// float depthTexCoordScaleS = (right - left) * nearScale / sWidth;
// float depthTexCoordScaleT = (top - bottom) * nearScale / tHeight;
// float depthTexCoordOffsetS = left * nearScale - sMin * depthTexCoordScaleS;
// float depthTexCoordOffsetT = bottom * nearScale - tMin * depthTexCoordScaleT;
batch._glUniform2f(_texcoordOffsetLoc, 1.0f / fbWidth, 1.0f / fbHeight);
glm::vec4 color(0.0f, 0.0f, 0.0f, 1.0f);
glm::vec2 bottomLeft(-1.0f, -1.0f);
glm::vec2 topRight(1.0f, 1.0f);
glm::vec2 texCoordTopLeft(0.0f, 0.0f);
glm::vec2 texCoordBottomRight(1.0f, 1.0f);
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
// Blend step
getBlendPipeline();
batch.setResourceTexture(0, _antialiasingTexture);
batch.setFramebuffer(sourceBuffer);
batch.setPipeline(getBlendPipeline());
DependencyManager::get<GeometryCache>()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color);
});
}
