Contents
What is a good texture size?
One way to choose texture sizes is to have a target texel density relative to the size of an object. For instance, if you wanted 128 texels per meter, then an object 4 meters in size should have a 512×512 texture, an object 8 meters in size should have a 1024×1024 texture, etc.
How big can a texture be?
Traditional High-end PC Graphics Card Vendors
| size of texture | 16 bit | 32 bit |
|---|---|---|
| 2048*2048 | 8 | 16 |
| 4096*4096 | 32 | 64 |
| 8192*8192 | 128 | 256 |
| 16384*16384 | 512 | 1024 |
Why is the power of 2 a texture?
Why are textures always square powers of two? Textures are not always square nor are they always powers of two. The reason why they tend to be powers of two is usually to increase compatibility with older video cards that imposed that restriction. As for non-square textures, that’s not usually a problem.
What are the three characteristics of a texture?
There are three defining characteristics of a texture, each of them defining part of those constraints: the texture type, texture size, and the image format used for images in the texture. The texture type defines the arrangement of images within the texture. The size defines the size of the images in the texture.
What’s the difference between an image and a texture?
For the purpose of this discussion, an image is defined as a single array of pixels of a certain dimensionality (1D, 2D, or 3D), with a particular size, and a specific format. A texture is a container of one or more images.
How to define a 3-dimensional texture in OpenGL?
GL_TEXTURE_3D: Images in this texture all are 3-dimensional. They have width, height, and depth. GL_TEXTURE_RECTANGLE: The image in this texture (only one image. No mipmapping) is 2-dimensional. Texture coordinates used for these textures are not normalized. GL_TEXTURE_BUFFER: The image in this texture (only one image.
What is the concept of a complete texture object?
A texture object has the concept of “completeness”. A complete texture object is one which is in a logical state to be used for many operations. Until a texture is complete, it *cannot* be used in shader sampling or Image Load Store operations.