lighting

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Fast 2D illumination algorithm?

We have a rectangular area with translucent walls and a few light sources.We are considering only the top view,so it is a 2D problem. We need to find the approximate lighting (signal strength)at each[详细]

2023-03-03 22:05 分类：问答
3D Lighting (OpenGl)

I already asked this question but I didn\'t get my answer. Btw I found some thing new.I want to show a 3D model f开发者_如何转开发rom a wrl file exported by solid works.The file contains triangle\'s v[详细]

2023-03-02 17:00 分类：问答
OpenGL lighting small objects?

I\'m having a problem with lighting when dealing with really small particles. I\'m doing particle-based fluid simulation and am right now rendering the fluid as really tiny polygonized spheres (by rea[详细]

2023-03-01 02:19 分类：问答
GLSL normals with non-standard projection matrix

After a few days of getting my GLSL vertex shader to display the vertices correctly, I\'ve now moved onto lighting! My understanding of openGL lighting/normals isn\'t great by any stretch of the imagi[详细]

2023-02-27 05:24 分类：问答
OpenGL Spotlights

I\'m trying to make \'spotlights\' over a pool table in openGL. This should be fairly simple, but something is going wrong, and I can\'t work out what.[详细]

2023-02-24 23:22 分类：问答
iPhone OpenGL-ES : Stopping the light source from moving

I been following a lighting guide and set up a lighting source for my spinning cube (spins by user interaction on 3 axis)[详细]

2023-02-07 01:55 分类：问答
OpenGL spotlight with Cg

I\'m trying to accomplish a spotlight effect with Cg. I\'ve already managed to do normal ambient and diffuse lighting.[详细]

2023-01-31 17:33 分类：问答
Why isn't this Android specular lighting example working as intended?

Why aren\'t specular highlights showing up in the binary produced by the following code? package com.example.helloandroid;[详细]

2023-01-30 14:06 分类：问答
How to create fast and easy scene-independent shadows w/o shaders in OpenGL

Let i have some mesh (for ex. sphere) in the center of room, full of cubes and one light source. How can i make fast and easy shadow-casting in OpenGL, using \"standard\" (fixed)开发者_运维百科 functi[详细]

2023-01-26 07:56 分类：问答
OpenGL: Using shaders to create vertex lighting by using pre-calculated colormap?

First of all, I have very little knowledge of what shaders can do, and i am very interested in making vertex lighting. I am attempting to use a 3d colormap which would be used to calculate the vertex[详细]

2023-01-26 03:36 分类：问答