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Initial gpu and vulkan tech doc. #2

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Jeroen Bakker merged 2 commits from :gpu-vulkan into main 2023-05-09 16:25:57 +02:00
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docs/eevee_and_viewport/gpu/index.md
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@ -295,7 +295,7 @@ the vertex and fragment stage and link the stages into a program that can be use
the GPU. It also generates a GPUShaderInterface that handles lookup to input parameters the GPU. It also generates a GPUShaderInterface that handles lookup to input parameters
(attributes, uniforms, uniform buffers, textures and shader storage buffer objects). (attributes, uniforms, uniform buffers, textures and shader storage buffer objects).
### Geometry ## Geometry
Geometry is defined by a `GPUPrimType`, one index buffer (IBO) and one or more vertex Geometry is defined by a `GPUPrimType`, one index buffer (IBO) and one or more vertex
buffers (VBOs). The GPUPrimType defines how the index buffer should be interpreted. buffers (VBOs). The GPUPrimType defines how the index buffer should be interpreted.
@ -343,7 +343,7 @@ for (int i = 0; i < 12; i ++) {
} }
``` ```
### Batch ## Batch
Use GPUBatches to draw geometry. A GPUBatch combines the geometry with a shader Use GPUBatches to draw geometry. A GPUBatch combines the geometry with a shader
and its parameters and has functions to perform a draw call. To perform a draw and its parameters and has functions to perform a draw call. To perform a draw
@ -359,7 +359,7 @@ This will draw on the geometry on the active frame buffer using the shader and t
> NOTE: GPUTextures can be used as render target or as input of a shader, but not inside the same drawing call. > NOTE: GPUTextures can be used as render target or as input of a shader, but not inside the same drawing call.
### Immediate mode and built in shaders ## Immediate mode and built in shaders
To ease development for drawing panels/UI buttons the GPU module provides an To ease development for drawing panels/UI buttons the GPU module provides an
immediate mode. This is a wrapper on top of what is explained above, but in a immediate mode. This is a wrapper on top of what is explained above, but in a