Commit Graph

25 Commits

Author SHA1 Message Date
manuelk
639788abbe Fix vec array initialization in GLSL & HLSL (should fix some DX compiler problems)
Fixes #354
2014-10-04 16:22:43 -07:00
manuelk
c399655dcc Landing 3.0.0.alpha
Sync'ing the 'dev' branch with the 'feature_3.0dev' branch at commit 68c6d11fc36761ae1a5e6cdc3457be16f2e9704a

The branch 'feature_3.0dev' is now locked and preserved for historical purposes.
2014-09-05 15:07:46 -07:00
Takahito Tejima
ee061291b7 Interleaved buffer support in OsdCompute. Removed OsdVertexDescriptor and replaced with OsdVertexBufferDescriptor.
All kernels take offset/length/stride to apply subdivision partially in each vertex elements.

Also the offset can be used for client-based VBO aggregation, without modifying index buffers.
This is useful for topology sharing, in conjunction with glDrawElementsBaseVertex etc.
However, gregory patch shader fetches vertex buffer via texture buffer, which index should also
be offsetted too. Although gl_BaseVertexARB extension should be able to do that job, it's a
relatively new extension. So we use OsdBaseVertex() call to mitigate the compatibility
issue as clients can provide it in their way at least for the time being.
2014-05-09 15:44:52 -07:00
manuelk
f1518a5f59 Fix Gregory Boundary patch buffer overrun
Prevent boundaryEdgeNeighbors[2] from being overrun when an interior
vertex has more than 2 boundary neighbor vertices. The fix is applied
to the GLSL / HLSL and CPU implementations.

Note: this appears to fix long-standing problems with Gregory patches,
but i am not entirely convinced that this fixes the general case.

fixes #259
2014-02-13 11:30:33 -08:00
Takahito Tejima
f7f2ca2581 Move uniform block definitions out of osd common shader into client shader.
Important notice: all client shader code must have following functions and compose them to osd intrinsic shaders (vertex/tessEval/tessControl)

mat4 OsdModelViewMatrix()
mat4 OsdProjectionMatrix()
mat4 OsdModelViewProjectionMatrix()
float OsdTessLevel()
int OsdGreogryQuadOffsetBase()
int OsdPrimitiveIdBase()

We probably should write a utility class for basic binding of them, to make client code simpler.
2013-12-03 15:59:38 -08:00
manuelk
3ae50d1c50 Amending Apache license language & file headers.
New text:

     Copyright 2013 Pixar

     Licensed under the Apache License, Version 2.0 (the "Apache License")
     with the following modification; you may not use this file except in
     compliance with the Apache License and the following modification to it:
     Section 6. Trademarks. is deleted and replaced with:

     6. Trademarks. This License does not grant permission to use the trade
        names, trademarks, service marks, or product names of the Licensor
        and its affiliates, except as required to comply with Section 4(c) of
        the License and to reproduce the content of the NOTICE file.

     You may obtain a copy of the Apache License at

         http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the Apache License with the above modification is
     distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     KIND, either express or implied. See the Apache License for the specific
     language governing permissions and limitations under the Apache License.
2013-09-26 12:04:57 -07:00
Takahito Tejima
c2e0d06f56 Second derivatives computation, fix tangent/bitangent length 2013-09-20 18:23:28 -07:00
Takahito Tejima
51a45b598d Updating EULA 2013-07-18 14:19:50 -07:00
Takahito Tejima
a13c0565e4 Renamed texture buffers and uniforms
g_VertexBuffer -> OsdVertexBuffer
g_ValenceBuffer -> OsdValenceBuffer
g_QuadOffsetBuffer -> OsdQuadOffsetBuffer
g_ptexIndicesBuffer -> OsdPatchParamBuffer
g_uvFVarBuffer -> OsdFVarDataBuffer
LevelBase -> PrimitiveIdBase
2013-07-18 12:57:26 -07:00
David G Yu
1b6026a1a2 A few minor changes to sync up GLSL and HLSL 2013-07-02 10:06:24 -07:00
David G Yu
6b7a41d4db Unified GLSL Gregory patch shaders 2013-07-01 11:58:28 -07:00
David G Yu
03b5b329d3 True up the GLSL Gregory patch shader source
Mostly just whitespace changes and variable renaming.
2013-07-01 11:47:21 -07:00
David G Yu
d2abf61c56 Added adaptive tess of user varying values
This isn't necessarily a final design, but
it gets enough of the pieces in place to move
forward.
2013-06-28 14:05:47 -07:00
David G Yu
15b467dda9 Fixed preprocessor syntax for shader portability 2013-06-28 10:10:25 -07:00
David G Yu
8fae6511f7 Continued bicubic patch shader cleanup
Removed superfluous vertex and fragment/pixel shaders
2013-06-27 17:26:22 -07:00
Takahito Tejima
184e90f9a1 Add fractional spacing mode for patch rendering. 2013-06-27 13:34:25 -07:00
David G Yu
9bab9185ab Partial cleanup of bicubic patch shader source
- Added OSD_ prefix to preprocessor symbols
- Adjusted transition sub-patch parameterization to be
  consistent with non-transition patches
- Unified BSpline shader code
- Removed duplicate Boundary, Corner, and Transition shader source
- Fixed a few discrepancies in the remaining duplicate code paths
2013-06-24 12:03:57 -07:00
David G Yu
1461deb308 Fixed glsl shader portability (input,output) 2013-06-10 16:31:30 -07:00
David G Yu
ffe427dc65 Fixed glsl unsigned conversions in Gregory shaders 2013-06-10 16:21:48 -07:00
David G Yu
e1930e58cd Fixed some glsl preprocessor tests
Changed #if --> #ifdef for OSD_ENABLE_SCREENSPACE_TESSELLATION
2013-06-10 16:21:47 -07:00
David G Yu
c185968809 Updated glsl code texelFetchBuffer -> texelFetch
This allows us to remove unnecessary directives
to require GL_EXT_gpu_shader4
2013-06-10 16:21:47 -07:00
Takahito Tejima
f592e90067 fix OsdGLDrawContext to follow far patchtables refactoring. 2013-05-09 09:23:01 -07:00
Takahito Tejima
8efecb0fca Batching stuffs: generalized kernel batches, table/dispatcher refactoring, multiMeshFactory, drawContext, etc.
2 client APIs are changed.
- VertexBuffer::UpdateData() takes start vertex offset
- ComputeController::Refine() takes FarKernelBatchVector

Also, ComputeContext no longer holds farmesh.
Client can free farmesh after OsdComputeContext is created.
(but still need FarKernelBatchVector to apply subdivision kernels)
2013-03-07 17:50:15 -08:00
manuelk
ab47ee53b3 adding some ASCII art to document cryptic CV names in Gregory shader code.
fixes #86
2012-12-11 14:26:06 -08:00
manuelk
10c687ecd5 Release Candidate 1.0 :
- [Feature Adaptive GPU Rendering of Catmull-Clark Surfaces](http://research.microsoft.com/en-us/um/people/cloop/tog2012.pdf).

- New API architecture : we are planning to lock on to this new framework as the basis for backward compatibility, which we will enforce from Release 1.0 onward. Subsequent releases of OpenSubdiv should not break client code.

- DirectX 11 support

- and much more...
2012-12-10 17:15:13 -08:00