add oidn

3DEditor/private/Denoise.cpp

@@ -0,0 +1,40 @@
+
+#include "Editor.hpp"
+
+#include "OpenImageDenoise/oidn.hpp"
+#include <iostream>
+
+using namespace tp;
+
+void Editor::denoise() {
+	auto& out = mPathTracerBuffers;
+
+	// Initialize OIDN device
+	oidn::DeviceRef device = oidn::newDevice(oidn::DeviceType::CPU);
+	device.commit();
+
+	// Define buffer size
+	const int channels = 4; // ARGB
+	const auto size = out.color.size();
+	// Create the denoising filter
+	oidn::FilterRef filter = device.newFilter("RT"); // Use the 'RT' filter for path tracing
+
+	// Set the input and output buffer (same buffer for in-place denoising)
+	filter.setImage("color", out.color.getBuff(), oidn::Format::Float3, size.x, size.y, 0, sizeof(float) * channels); // ARGB
+	filter.setImage("output", out.color.getBuff(), oidn::Format::Float3, size.x, size.y, 0, sizeof(float) * channels); // ARGB
+
+	// Set additional parameters if needed
+	filter.set("hdr", false); // Assuming the input image is not HDR
+
+	// Commit the filter
+	filter.commit();
+
+	// Execute the filter
+	filter.execute();
+
+	// Check for errors
+	const char* errorMessage;
+	if (device.getError(errorMessage) != oidn::Error::None) {
+		std::cerr << "Error: " << errorMessage << std::endl;
+	}
+}

3DEditor/private/Editor.cpp

@@ -58,7 +58,7 @@ void Editor::loadDefaults() {
 
 void Editor::setViewportSize(const Vec2F& size) {
 	// TODO remove
-	// mScene.mCamera.rotate(0.01f, 0.0);
+	mScene.mCamera.rotate(0.01f, 0.0);
 
 	mScene.mRenderSettings.size = size;
 
@@ -72,25 +72,29 @@ Editor::~Editor() {
 
 void Editor::renderPathFrame() {
 	mPathRenderer.render(mScene, mPathTracerBuffers, mScene.mRenderSettings);
-	// mPathTracerBuffers.color.flipY();
+	sendBuffersToGPU();
+}
 
-	{
-		glBindTexture(GL_TEXTURE_2D, mPathRenderTexture);
-		const auto size = mPathTracerBuffers.color.size();
-		glTexImage2D(
-			GL_TEXTURE_2D,
-			0,
-			GL_RGBA32F,
-			(GLsizei) size.x,
-			(GLsizei) size.y,
-			0,
-			GL_RGBA,
-			GL_FLOAT,
-			mPathTracerBuffers.color.getBuff()
-		);
-		glBindTexture(GL_TEXTURE_2D, 0);
+void Editor::sendBuffersToGPU() {
+	glBindTexture(GL_TEXTURE_2D, mPathRenderTexture);
+	const auto size = mPathTracerBuffers.color.size();
+	glTexImage2D(
+		GL_TEXTURE_2D,
+		0,
+		GL_RGBA32F,
+		(GLsizei) size.x,
+		(GLsizei) size.y,
+		0,
+		GL_RGBA,
+		GL_FLOAT,
+		mPathTracerBuffers.color.getBuff()
+	);
+	glBindTexture(GL_TEXTURE_2D, 0);
+}
 
-	}
+void Editor::denoisePathRenderBuffers() {
+	denoise();
+	sendBuffersToGPU();
 }
 
 void Editor::setRenderType(Editor::RenderType type) {