Juraj Obert

US Patent:

20130328895, Dec 12, 2013

Filed:

Jun 7, 2013

Appl. No.:

13/912946

Inventors:

Eric Zolnowski - Deltona FL, US
Pierre Boudier - Foix, FR
Juraj Obert - Oviedo FL, US

International Classification:

G06T 1/00

US Classification:

345522

Abstract:

Methods for enabling graphics features in processors are described herein. Methods are provided to enable trinary built-in functions in the shader, allow separation of the graphics processor's address space from the requirement that all textures must be physically backed, enable use of a sparse buffer allocated in virtual memory, allow a reference value used for stencil test to be generated and exported from a fragment shader, provide support for use specific operations in the stencil buffers, allow capture of multiple transform feedback streams, allow any combination of streams for rasterization, allow a same set of primitives to be used with multiple transform feedback streams as with a single stream, allow rendering to be directed to layered framebuffer attachments with only a vertex and fragment shader present, and allow geometry to be directed to one of an array of several independent viewport rectangles without a geometry shader.

US Patent:

20200327715, Oct 15, 2020

Filed:

Jun 29, 2020

Appl. No.:

16/915340

Inventors:

- Santa Clara CA, US
Eric Zolnowski - Orlando FL, US
Pierre Boudier - Los Gatos CA, US
Juraj Obert - Orlando FL, US

Assignee:

Advanced Micro Devices, Inc. - Santa Clara CA

International Classification:

G06T 15/00
G06T 1/00
G06T 1/20
G06T 1/60
G06T 11/40
G06T 15/80
G06T 17/20
G06T 19/20

Abstract:

A method and system for performing graphics processing is provided. The method and system includes storing stencil buffer values in a stencil buffer; generating either or both of a reference value and a source value in a fragment shader; comparing the stencil buffer values against the reference value; and processing a fragment based on the comparing the stencil buffer values against the reference value.

US Patent:

20170249779, Aug 31, 2017

Filed:

Feb 25, 2016

Appl. No.:

15/053930

Inventors:

- San Diego CA, US
Juraj Obert - Orlando FL, US

International Classification:

G06T 15/80
G06T 15/06

Abstract:

At least one processor may organize a plurality of primitives of a scene in a hierarchical data structure, wherein a plurality of bounding volumes are associated with a plurality of nodes of the hierarchical data structure. The at least one processor may rasterize a representation of each of the plurality of bounding volumes to an off-screen render target in the memory. The at least one processor may determine, based at least in part on a pixel in the off-screen render target that maps to a ray in the scene, a non-root node of the hierarchical data structure associated with the pixel as a start node to start traversal of the hierarchical data structure. The at least one processor may traverse the hierarchical data structure starting from the start node to determine whether the ray in the scene intersects one of the plurality of primitives.

US Patent:

20170061670, Mar 2, 2017

Filed:

Oct 31, 2016

Appl. No.:

15/339860

Inventors:

- Sunnyvale CA, US
Eric Zolnowski - Orlando FL, US
Pierre Boudier - Los Gatos CA, US
Juraj Obert - Orlando FL, US

Assignee:

Advanced Micro Devices, Inc. - Sunnyvale CA

International Classification:

G06T 15/00
G06T 17/20
G06T 15/80
G06T 1/20
G06T 19/20
G06T 11/40
G06T 1/60

Abstract:

Methods for enabling graphics features in processors are described herein. Methods are provided to enable trinary built-in functions in the shader, allow separation of the graphics processor's address space from the requirement that all textures must be physically backed, enable use of a sparse buffer allocated in virtual memory, allow a reference value used for stencil test to be generated and exported from a fragment shader, provide support for use specific operations in the stencil buffers, allow capture of multiple transform feedback streams, allow any combination of streams for rasterization, allow a same set of primitives to be used with multiple transform feedback streams as with a single stream, allow rendering to be directed to layered framebuffer attachments with only a vertex and fragment shader present, and allow geometry to be directed to one of an array of several independent viewport rectangles without a geometry shader.

US Patent:

20160364901, Dec 15, 2016

Filed:

Jun 12, 2015

Appl. No.:

14/738535

Inventors:

- San Diego CA, US
Christopher Paul Frascati - Oviedo FL, US
Juraj Obert - Orlando FL, US
Hitendra Mohan Gangani - Orlando FL, US
Avinash Seetharamaiah - San Diego CA, US

International Classification:

G06T 15/06
G06T 1/20
G06T 1/60
G06T 15/40

Abstract:

A method and apparatus for ray tracing may include a method, manufacture and apparatus for ray tracing that may include dividing a render target into a plurality of bins. Next, a visibility pass is performed using ray tracing to generate a visibility stream such that the visibility stream indicates, for each bin of the plurality of bins, which primitives are visible in the bin. Then, for at least one bin of the plurality of bins, each primitive in the bin that is indicated in the visibility stream as being visible in the bin is rendered.

US Patent:

20160292908, Oct 6, 2016

Filed:

Aug 20, 2015

Appl. No.:

14/831726

Inventors:

- San Diego CA, US
Juraj Obert - Orlando FL, US

International Classification:

G06T 15/06
G06T 15/00
G06T 1/20
G06T 15/08

Abstract:

Methods and systems disclosed improve the efficiency of ray tracing. In one aspect, a method of ray tracing in a digital representation of a scene includes segmenting the scene into a plurality of voxels, associating each of the voxels with a node of a bounding volume hierarchy (BVH) representing one or more object primitives within the scene, determining a set of voxels through which the ray passes, determining a set of nodes associated with the set of voxels, determining a deepest common ancestor node of the set of nodes, traversing the hierarchy starting at the deepest common ancestor node to determine a point of intersection between the ray and one of the one or more object primitives; and updating a digital image of the scene based on the determined point of intersection.