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meshoptimizer: Sync with upstream commit f4c356d79

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f4c356d79f
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Rémi Verschelde 2021-11-19 14:02:23 +01:00
parent 42f8bfaff0
commit 2410f5de03
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6 changed files with 178 additions and 36 deletions
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29
thirdparty/meshoptimizer/meshoptimizer.h vendored
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@ -278,9 +278,30 @@ MESHOPTIMIZER_API int meshopt_decodeVertexBuffer(void* destination, size_t verte
* meshopt_decodeFilterExp decodes exponential encoding of floating-point data with 8-bit exponent and 24-bit integer mantissa as 2^E*M.
* Each 32-bit component is decoded in isolation; stride must be divisible by 4.
*/
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterOct(void* buffer, size_t vertex_count, size_t vertex_size);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterQuat(void* buffer, size_t vertex_count, size_t vertex_size);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterExp(void* buffer, size_t vertex_count, size_t vertex_size);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterOct(void* buffer, size_t count, size_t stride);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterQuat(void* buffer, size_t count, size_t stride);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_decodeFilterExp(void* buffer, size_t count, size_t stride);
/**
* Vertex buffer filter encoders
* These functions can be used to encode data in a format that meshopt_decodeFilter can decode
*
* meshopt_encodeFilterOct encodes unit vectors with K-bit (K <= 16) signed X/Y as an output.
* Each component is stored as an 8-bit or 16-bit normalized integer; stride must be equal to 4 or 8. W is preserved as is.
* Input data must contain 4 floats for every vector (count*4 total).
*
* meshopt_encodeFilterQuat encodes unit quaternions with K-bit (4 <= K <= 16) component encoding.
* Each component is stored as an 16-bit integer; stride must be equal to 8.
* Input data must contain 4 floats for every quaternion (count*4 total).
*
* meshopt_encodeFilterExp encodes arbitrary (finite) floating-point data with 8-bit exponent and K-bit integer mantissa (1 <= K <= 24).
* Mantissa is shared between all components of a given vector as defined by stride; stride must be divisible by 4.
* Input data must contain stride/4 floats for every vector (count*stride/4 total).
* When individual (scalar) encoding is desired, simply pass stride=4 and adjust count accordingly.
*/
MESHOPTIMIZER_EXPERIMENTAL void meshopt_encodeFilterOct(void* destination, size_t count, size_t stride, int bits, const float* data);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_encodeFilterQuat(void* destination, size_t count, size_t stride, int bits, const float* data);
MESHOPTIMIZER_EXPERIMENTAL void meshopt_encodeFilterExp(void* destination, size_t count, size_t stride, int bits, const float* data);
/**
* Experimental: Mesh simplifier
@ -305,7 +326,7 @@ MESHOPTIMIZER_EXPERIMENTAL size_t meshopt_simplifyWithAttributes(unsigned int* d
/**
* Experimental: Mesh simplifier (sloppy)
* Reduces the number of triangles in the mesh, sacrificing mesh apperance for simplification performance
* Reduces the number of triangles in the mesh, sacrificing mesh appearance for simplification performance
* The algorithm doesn't preserve mesh topology but can stop short of the target goal based on target error.
* Returns the number of indices after simplification, with destination containing new index data
* The resulting index buffer references vertices from the original vertex buffer.