texture-mapping

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OpenGL DECAL Texture on a Transparent Quad?

I have an OpenGL texture with transparent and opaque pixels (eg, texture contains a circle, area outside the circle is transparent with alpha of 0.0).[详细]

2022-12-22 07:31 分类：问答
How do I arbitrarily distort a textured polygon?

I\'d like to write a program that lets me arbitrarily 开发者_运维百科distort a textured polygon by dragging its vertices. I want the texture to distort fluidly and without overlap, assuming the new po[详细]

2022-12-21 02:49 分类：问答
How do I draw a texture-mapped triangle in MATLAB?

I have a triangle in (u,v) coordinates in an image. I would like to draw this triangle at 3D coordinates (X,Y,Z) texture-mapped with the triangle in the image.[详细]

2022-12-20 03:13 分类：问答
Getting x,y coordinates of a texture mapped on sphere (WPF, synch, no visualtreehelper.hittest)

technology: WPF, C# pretext: I am making a game with a custom gyroscope+accelerometer device. I have a sphere that has a labyrinth map on it. The texture is mapped by a set of positions and texture c[详细]

2022-12-19 18:25 分类：问答
Mapping texture to 3D objects in a batch process on the server

we have the following use case: the user uploads her picture on a web server at a later time - on the server - the picture(s) are mapped on predefined 3D objects and stored as normal images (png, jp[详细]

2022-12-17 06:33 分类：问答
Reading 32-bit RGBA float values in GLSL

I\'m trying send some 32 bit float data to a shader, but the results are erratic. If I test with full white (1,1,1,1) the values are all zero. This is my code for creating the texture:[详细]

2022-12-14 10:18 分类：问答
textureMappingu/v in common Vertex structures?

Looking through some directx examples, I\'m often seeing the structure for a vertex to be defined as such:[详细]

2022-12-12 15:49 分类：问答
texture minification filter in raytracing?

can开发者_JS百科 someone point me to a paper/algorithm/resource/whatever that tells me how to implement a texture minification filter (applies when texels are smaller than pixels) in a raytracer?[详细]

2022-12-12 14:37 分类：问答
Power of two textures

Can you explain me, why hardware acceleration required for a long time textures be power of two? For PCs, since GeForce 6 we achieved npot textures with no-mips开发者_运维知识库 and simplified filteri[详细]

2022-12-11 07:27 分类：问答