picogl.js | A minimal WebGL 2 rendering library | Graphics library
kandi X-RAY | picogl.js Summary
kandi X-RAY | picogl.js Summary
[NPM] [API Docs] | [Tutorial] | [Chat] PicoGL.js is a minimal WebGL 2 rendering library. It’s meant for developers who understand the WebGL 2 rendering pipeline and want to use it, but with a more convenient API. Typical usage of PicoGL.js will involve creating programs, vertex buffers, vertex arrays, uniform buffers, framebuffers, textures, transform feedbacks, and combining them into draw calls. Note that PicoGL.js is not a scene graph library. There are no objects, hierarchies, transforms, materials, etc. It has been designed only to make management of GPU state more convenient. Its conceptual model maps fairly directly to the constructs one deals with when writing directly with the WebGL 2 API. The only higher-level construct is the draw call, which manages sets of related lower-level constructs.
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QUESTION
I'm looking at this example code from the WebGL2 library PicoGL.js.
It describes a single triangle (three vertices: (-0.5, -0.5), (0.5, -0.5), (0.0, 0.5)
), each of which is assigned a color (red, green, blue) by the vertex shader:
ANSWER
Answered 2019-Oct-15 at 18:42The khronos OpenGL wiki - Fragment Shader has the answer. Namely:
Each fragment has a Window Space position, a few other values, and it contains all of the interpolated per-vertex output values from the last Vertex Processing stage.
(Emphasis mine)
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