+Z is the front face in a cubemap, not -Z. Currently cubemap faces are
flipped in both the X and Z directions.
Some kind of flip is required because cubemaps use a left-handed
coordinate space instead of lovr's/vulkan's right-handed coordinate
space.
Equirect does not need any changes.
(cherry picked from commit 1b1bc182bf)
This is a little slower, but means indirect draws can use Transform and Color.
There are other solutions for this. For example LÖVR could reserve
BaseInstance and use a compute shader to rewrite indirect buffers.
For now we choose to be correct and a little slower.
- Undeprecate ShaderType (it's good actually, kinda like a pipeline bind
point and more specific than having lovr trying to make sense of a
random set of stages).
- Use a default uniform block instead of push constants. The Constants
macro now maps to a uniform block declaration.
- It is no longer possible to create a shader by giving a single
DefaultShader string (you can still give a per-stage DefaultShader
though).
- lovr.graphics.compileShader now takes all stages instead of a single
stage. In general we need all stages when compiling GLSL because
default uniforms require linking across stages.
This shaves 20 bytes off of each model vertex, or around 40% savings.
The vertex size is also a power of two which results in extreme amounts
of style points.
+Z is the front face in a cubemap, not -Z. Currently cubemap faces are
flipped in both the X and Z directions.
Some kind of flip is required because cubemaps use a left-handed
coordinate space instead of lovr's/vulkan's right-handed coordinate
space.
Equirect does not need any changes.
- Cubemaps can have any layer count that is a multiple of 6.
- A cubemap with more than 6 layers will be a cubemap array image view.
- This isn't perfect because it conflates regular cubemaps with
6-layer cubemap arrays.
- Enable the vk feature, handle the spv feature, add getPixel helper.
- state.features.overlay should remain a bool since it just indicates
whether the extension is supported/enabled.
- split the config value into a bool/u32 pair so the full u32 range can
be used for the order (seems important to coordinate with other apps).
- Also you can use a boolean now like before, which uses 0 as the order.
- Add newSurface, which returns a "blank" surface, allowing you to set
your own properties.
- Add finalizeSurface, which sets computed surface properties and clamps
values to prepare for lighting.
- Add applyMaterial, which takes all of the properties in the material
and applies them to a surface
- Add helper functions for getting properties from the Material, which
combine scalar factors and texture samples while respecting shader
flags:
- getMaterialBaseColor
- getMaterialEmissive
- getMaterialMetalness
- getMaterialRoughness
- getMaterialOcclusion
- getMaterialClearcoat
- getMaterialClearcoatRoughness
- Add getDefaultSurface, which returns what initSurface would result in
today, deprecating initSurface.
- Last row of transform matrix is unused, make it 4x3
- Requires funny row-major packing due to vec3 std140 padding.
- Teach spirv parser to tolerate non-square matrix types, though
they aren't supported anywhere else yet.
- Compute cofactor in shader for normal matrix, ALU is free,
optimize out many terms, rm maf_cofactor.
- Take out complex UBO alignment logic since stuff is PO2 these days.
This was a common bottleneck for some workloads, so there are measurable
performance gains (up to 2x faster pass submission on CPU). GPU time is
identical, at least on desktop.
Some compile fixes and a rename from gpu_wgpu to gpu_web, since wgpu
refers to a specific implementation of WebGPU and I'm really bad at
typing it for some reason.
bjorn
Ilya
BabbleBones
xiejiangzhi