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Change texture coordinate precision to 32 bit float

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This commit is contained in:
Karol Suprynowicz 2025-04-26 14:59:08 +02:00
parent 4cbde7e3f0
commit d23f95621c
1 changed files with 16 additions and 0 deletions
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16
libraries/model-baker/src/model-baker/BuildGraphicsMeshTask.cpp
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@ -17,6 +17,9 @@
#include "ModelBakerLogging.h"
#include "ModelMath.h"
// Uncomment this to use 16-bit float texture coordinates instead of 32-bit ones.
//#define OVERTE_16_BIT_TEXCOODRS
using vec2h = glm::tvec2<glm::detail::hdata>;
glm::vec3 normalizeDirForPacking(const glm::vec3& dir) {
@ -80,7 +83,12 @@ void buildGraphicsMesh(const hfm::Mesh& hfmMesh, graphics::MeshPointer& graphics
const int colorsSize = hfmMesh.colors.size() * colorElement.getSize();
// Texture coordinates are stored in 2 half floats
#ifdef OVERTE_16_BIT_TEXCOODRS
const auto texCoordsElement = gpu::Element(gpu::VEC2, gpu::HALF, gpu::UV);
#else
const auto texCoordsElement = gpu::Element(gpu::VEC2, gpu::FLOAT, gpu::UV);
#endif
const int texCoordsSize = hfmMesh.texCoords.size() * texCoordsElement.getSize();
const int texCoords1Size = hfmMesh.texCoords1.size() * texCoordsElement.getSize();
@ -155,6 +163,7 @@ void buildGraphicsMesh(const hfm::Mesh& hfmMesh, graphics::MeshPointer& graphics
// Pack Texcoords 0 and 1 (if exists)
if (texCoordsSize > 0) {
#ifdef OVERTE_16_BIT_TEXCOODRS
QVector<vec2h> texCoordData;
texCoordData.reserve(hfmMesh.texCoords.size());
for (auto& texCoordVec2f : hfmMesh.texCoords) {
@ -165,8 +174,12 @@ void buildGraphicsMesh(const hfm::Mesh& hfmMesh, graphics::MeshPointer& graphics
texCoordData.push_back(texCoordVec2h);
}
vertBuffer->setSubData(texCoordsOffset, texCoordsSize, (const gpu::Byte*) texCoordData.constData());
#else
vertBuffer->setSubData(texCoordsOffset, texCoordsSize, (const gpu::Byte*) hfmMesh.texCoords.data());
#endif
}
if (texCoords1Size > 0) {
#ifdef OVERTE_16_BIT_TEXCOODRS
QVector<vec2h> texCoordData;
texCoordData.reserve(hfmMesh.texCoords1.size());
for (auto& texCoordVec2f : hfmMesh.texCoords1) {
@ -177,6 +190,9 @@ void buildGraphicsMesh(const hfm::Mesh& hfmMesh, graphics::MeshPointer& graphics
texCoordData.push_back(texCoordVec2h);
}
vertBuffer->setSubData(texCoords1Offset, texCoords1Size, (const gpu::Byte*) texCoordData.constData());
#else
vertBuffer->setSubData(texCoords1Offset, texCoords1Size, (const gpu::Byte*) hfmMesh.texCoords1.data());
#endif
}
// Clusters data