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Added explicit texture mip count, and per-binding sampler LOD clamp. (#4002)

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This commit is contained in:
Branimir Karadžić
2026-09-28 22:00:14 -07:00
committed by GitHub
parent ce3bee65f2
commit 968e4f8dd9
26 changed files with 368 additions and 117 deletions
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src/renderer_webgpu.cpp
+13 -6
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@@ -3641,7 +3641,7 @@ WGPU_IMPORT
.buffer = NULL,
.offset = 0,
.size = 0,
.sampler = texture.getSamplerState(bind.m_samplerFlags),
.sampler = texture.getSamplerState(bind.m_samplerFlags, bind.m_lod.min, bind.m_lod.max),
.textureView = NULL,
};
}
@@ -5031,7 +5031,7 @@ WGPU_IMPORT
}
}
WGPUSampler TextureWGPU::getSamplerState(uint32_t _samplerFlags) const
WGPUSampler TextureWGPU::getSamplerState(uint32_t _samplerFlags, uint8_t _lodMin, uint8_t _lodMax) const
{
uint32_t samplerFlags = (0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & _samplerFlags)
? _samplerFlags
@@ -5047,7 +5047,14 @@ WGPU_IMPORT
}
samplerFlags &= BGFX_SAMPLER_BITS_MASK;
WGPUSampler sampler = s_renderWGPU->m_samplerStateCache.find(samplerFlags);
const uint64_t key = 0
| uint64_t(samplerFlags)
| (uint64_t(_lodMin) << 40)
| (uint64_t(_lodMax) << 32)
;
WGPUSampler sampler = s_renderWGPU->m_samplerStateCache.find(key);
const bool disableAniso = true
&& (BGFX_SAMPLER_MIN_POINT == (samplerFlags&BGFX_SAMPLER_MIN_POINT) )
@@ -5067,14 +5074,14 @@ WGPU_IMPORT
.magFilter = s_textureFilterMinMag[(samplerFlags&BGFX_SAMPLER_MAG_MASK)>>BGFX_SAMPLER_MAG_SHIFT],
.minFilter = s_textureFilterMinMag[(samplerFlags&BGFX_SAMPLER_MIN_MASK)>>BGFX_SAMPLER_MIN_SHIFT],
.mipmapFilter = s_textureFilterMip[(samplerFlags&BGFX_SAMPLER_MIP_MASK)>>BGFX_SAMPLER_MIP_SHIFT],
.lodMinClamp = 0,
.lodMaxClamp = bx::kFloatLargest,
.lodMinClamp = float(_lodMin) * 0.25f,
.lodMaxClamp = UINT8_MAX == _lodMax ? bx::kFloatLargest : float(_lodMax) * 0.25f,
.compare = 0 == cmpFunc ? WGPUCompareFunction_Undefined : s_cmpFunc[cmpFunc],
.maxAnisotropy = disableAniso ? uint16_t(1) : s_renderWGPU->m_maxAnisotropy,
};
sampler = WGPU_CHECK(wgpuDeviceCreateSampler(s_renderWGPU->m_device, &samplerDesc) );
s_renderWGPU->m_samplerStateCache.add(samplerFlags, sampler);
s_renderWGPU->m_samplerStateCache.add(key, sampler);
}
return sampler;