light

问题 I have implemented global illumination using the Monte Carlo method, using the scratch a pixel tutorial as a guide. My final image renders very noisy! The example below is at 64 samples, I have previously used as high as 512 and its still very noisy. Any ideas what the problem could be? Edit: Here is the output with 128 samples and 16x Super sampling,resulting in 2048 samples. Still lots of noise! 回答1: Path tracing is pretty noisy; it's the nature of the algorithm. Consider this example from

问题 I have implemented global illumination using the Monte Carlo method, using the scratch a pixel tutorial as a guide. My final image renders very noisy! The example below is at 64 samples, I have previously used as high as 512 and its still very noisy. Any ideas what the problem could be? Edit: Here is the output with 128 samples and 16x Super sampling,resulting in 2048 samples. Still lots of noise! 回答1: Path tracing is pretty noisy; it's the nature of the algorithm. Consider this example from

问题 I created images assets for dark and light mode called myImage. Set the image assets appearance to Any, Dark. The problem this code gets the same image even if the mode is light or dark. How can I get the code to select the correct image depending on light or dark mode? Thanks for your help. let image = UIImage(named: "image") let asset = image?.imageAsset let resolvedImage = asset?.image(with: traitCollection) If let image = resolvedImage { myButton.setImage(image, for: .normal) } 回答1: let

问题 I created images assets for dark and light mode called myImage. Set the image assets appearance to Any, Dark. The problem this code gets the same image even if the mode is light or dark. How can I get the code to select the correct image depending on light or dark mode? Thanks for your help. let image = UIImage(named: "image") let asset = image?.imageAsset let resolvedImage = asset?.image(with: traitCollection) If let image = resolvedImage { myButton.setImage(image, for: .normal) } 回答1: let

来源： https://stackoverflow.com/questions/63892847/how-do-i-adjust-the-my-glsl-code-to-add-additional-light-sources

来源： https://stackoverflow.com/questions/63892847/how-do-i-adjust-the-my-glsl-code-to-add-additional-light-sources

问题 I want to add directional light to my scene using OpenGL and GLSL. The problem is that the theoretically correct way to do so has the wrong results. In the vertex shader I do the following: The direction of the light is given in world-coordinates and transformed using the viewMatrix to camera-coordinates. The normal of the vertex is transformed using the normal-matrix to camera-coordinates. void main () { vary_textureCoord = attribute_textureCoord; vary_normal = mat3(normalMatrix) * attribute

问题 I want to add directional light to my scene using OpenGL and GLSL. The problem is that the theoretically correct way to do so has the wrong results. In the vertex shader I do the following: The direction of the light is given in world-coordinates and transformed using the viewMatrix to camera-coordinates. The normal of the vertex is transformed using the normal-matrix to camera-coordinates. void main () { vary_textureCoord = attribute_textureCoord; vary_normal = mat3(normalMatrix) * attribute

问题 I want to add directional light to my scene using OpenGL and GLSL. The problem is that the theoretically correct way to do so has the wrong results. In the vertex shader I do the following: The direction of the light is given in world-coordinates and transformed using the viewMatrix to camera-coordinates. The normal of the vertex is transformed using the normal-matrix to camera-coordinates. void main () { vary_textureCoord = attribute_textureCoord; vary_normal = mat3(normalMatrix) * attribute

问题 i have a problem. i have wrote some code on three.js, it consists of scene, 2 objects, renderer and camera. but when i added the light i didnt see the it! i tried some options..but nothing helped me my code there - http://codepen.io/usf/pen/LaDwh var light = new THREE.SpotLight(0xff0000); light.position.set( 0, 0, 50 ); var pointLight = new THREE.PointLight( 0xffffff); pointLight.position.set( 0, 0, 50 ); scene.add(light); scene.add(pointLight); //code renderer.render(scene, camera); i dont