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GLSL: Difference between revisions
→Pipeline
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==Pipeline== | ==Pipeline== | ||
===Vertex Shader=== | ===Vertex Shader=== | ||
In the vertex shader, your inputs are a model matrix, view matrix, and projection matrix uniforms as well as one vertex position in local coordinates. | In the vertex shader, your inputs are a model matrix, view matrix, and projection matrix uniforms as well as one vertex position in local coordinates. | ||
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These values can be passed to the following stages as <code>varying</code>'s. | These values can be passed to the following stages as <code>varying</code>'s. | ||
<code>varying</code>'s are linearly interpolated using barycentric coordinates. | <code>varying</code>'s are linearly interpolated using barycentric coordinates. | ||
===Tesselation Shader=== | |||
This is an optional shader which can be used to dynamically upsample your triangles using subdivision. | |||
It typically runs once per triangle. | |||
===Geometry Shader=== | ===Geometry Shader=== | ||
This is an optional shader which can be used to generate or remove triangles. | |||
It typically runs once per point, line, or triangle. | |||
The outputs are typically new vertices and new triangles. | |||
===Fragment Shader=== | ===Fragment Shader=== | ||
This shader outputs pixel color values based on information stored in each triangle. | |||
It runs once per pixel. | |||