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1. 发明申请

US20130033513A1 TEXTURE COMPRESSION AND DECOMPRESSION 有权
标题翻译：纹理压缩和分解
公开(公告)号：US20130033513A1
公开(公告)日：2013-02-07
申请号：US13640203
申请日：2011-02-09
申请人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
发明人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
IPC分类号： G06T11/40
CPC分类号： G06T9/00
摘要： Embodiments relate to compression and decompression of textures. A texel block (10) is compressed by specifying two major directions in the texel block (10) and defining the profiles of how the texel values change along the respective directions. The resulting compressed texel block (30) comprises two value codewords (31, 32), two line codewords (35-38) and a function codeword (33, 34). The two value codewords (31, 32) are employed to calculate two texel values for the texel block (10). The line codewords (35-38) are employed to determine equations of two lines (20, 22) coinciding with the two major directions in the texel block (10). Signed distances are calculated for each texel (12) from the texel position in the texel block (10) and to the two lines (20, 22). The signed distances are input to a function defined by the function codeword (33, 34) to output two values from which weights are calculated and applied to the two texel values in order to get a representation of the texel value of a texel (12).
摘要翻译：实施例涉及纹理的压缩和解压缩。通过在纹素块（10）中指定两个主要方向来压缩纹理块（10），并且定义纹理值沿着各个方向如何变化的轮廓。所得到的压缩纹理块（30）包括两个值码字（31,32），两行码字（35-38）和一个功能码字（33,34）。两个值码字（31,32）用于计算纹素块（10）的两个纹素值。行码字（35-38）用于确定与纹理块（10）中的两个主要方向一致的两条线（20,22）的等式。从纹理块（10）中的纹素位置和两条线（20,22）中的每个纹理像素（12）计算签名距离。有符号距离被输入到由功能代码字（33,34）定义的函数，以输出计算权重的两个值并将其应用于两个纹素值，以便获得纹素的纹理值的表示（12）。

2. 发明授权

US09111328B2 Texture compression and decompression 有权
标题翻译：纹理压缩和解压缩
公开(公告)号：US09111328B2
公开(公告)日：2015-08-18
申请号：US13640203
申请日：2011-02-09
申请人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
发明人： Jim Rasmusson , Michael Doggett , Jacob Ström , Per Wennersten
IPC分类号： G06T11/40 , G06T9/00
CPC分类号： G06T9/00
摘要： Embodiments relate to compression and decompression of textures. A texel block (10) is compressed by specifying two major directions in the texel block (10) and defining the profiles of how the texel values change along the respective directions. The resulting compressed texel block (30) comprises two value codewords (31, 32), two line codewords (35-38) and a function codeword (33, 34). The two value codewords (31, 32) are employed to calculate two texel values for the texel block (10). The line codewords (35-38) are employed to determine equations of two lines (20, 22) coinciding with the two major directions in the texel block (10). Signed distances are calculated for each texel (12) from the texel position in the texel block (10) and to the two lines (20, 22). The signed distances are input to a function defined by the function codeword (33, 34) to output two values from which weights are calculated and applied to the two texel values in order to get a representation of the texel value of a texel (12).
摘要翻译：实施例涉及纹理的压缩和解压缩。通过在纹素块（10）中指定两个主要方向来压缩纹理块（10），并且定义纹理值沿着各个方向如何变化的轮廓。所得到的压缩纹理块（30）包括两个值码字（31,32），两行码字（35-38）和一个功能码字（33,34）。两个值码字（31,32）用于计算纹素块（10）的两个纹素值。行码字（35-38）用于确定与纹理块（10）中的两个主要方向一致的两条线（20,22）的等式。从纹理块（10）中的纹素位置和两条线（20,22）中的每个纹理像素（12）计算签名距离。有符号距离被输入到由功能代码字（33,34）定义的函数，以输出计算权重的两个值并将其应用于两个纹素值，以便获得纹素的纹理值的表示（12）。

3. 发明授权

US07336284B2 Two level cache memory architecture 有权
标题翻译：两级缓存内存架构
公开(公告)号：US07336284B2
公开(公告)日：2008-02-26
申请号：US10820580
申请日：2004-04-08
申请人： Stephen L. Morein , Michael Doggett
发明人： Stephen L. Morein , Michael Doggett
IPC分类号： G06T11/40 , G09G5/00 , G09G5/36
CPC分类号： G06F12/0897 , G06F3/14 , G06T1/60 , G09G2360/121 , G09G2360/125 , G09G2360/126
摘要： A memory architecture for use in a graphics processor including a main memory, a level one (L1) cache and a level two (L2) cache, coupled between the main memory and the L1 cache is disclosed. The L2 cache stores overlapping requests to the main memory before the requested information is stored in the L1 cache. In this manner, overlapping requests for previously stored information is retrieved from the faster L2 cache as opposed to the relatively slower main memory.
摘要翻译：公开了一种用于图形处理器的存储器架构，包括主存储器，第一级（L1）高速缓存和第二层（L2）高速缓存，耦合在主存储器和L1高速缓存之间。在将所请求的信息存储在L1高速缓存中之前，L2高速缓存将重叠请求存储到主存储器。以这种方式，与较慢的主存储器相比，从更快的L2高速缓存中检索先前存储的信息的重叠请求。

4. 发明申请

US20120177287A1 Analytical Motion Blur Rasterization With Compression 有权
标题翻译：压缩分析运动模糊栅格化
公开(公告)号：US20120177287A1
公开(公告)日：2012-07-12
申请号：US13004928
申请日：2011-01-12
申请人： Carl Johan Gribel , Michael Doggett , Tomas G. Akenine-Möller
发明人： Carl Johan Gribel , Michael Doggett , Tomas G. Akenine-Möller
IPC分类号： G06K9/48 , G06K9/00
CPC分类号： G06T5/003 , G06F17/16 , G06T9/00 , G06T11/40 , G06T13/80 , H04N19/436 , H04N19/90
摘要： A rasterizer, based on time-dependent edge equations, computes analytical visibility in order to render accurate motion blur. An oracle-based compression algorithm for the time intervals lowers the frame buffer requirements. High quality motion blurred scenes can be rendered using a rasterizer with rather low memory requirements. The resulting images may contain motion blur for both opaque and transparent objects.
摘要翻译：基于时间依赖边缘方程的光栅化器计算分析可视性以便呈现精确的运动模糊。用于时间间隔的基于oracle的压缩算法降低了帧缓冲区的要求。可以使用具有相当低内存要求的光栅化器来渲染高质量运动模糊场景。所得到的图像可能包含不透明和透明对象的运动模糊。

5. 发明申请

US20060202941A1 SYSTEM AND METHOD FOR DETERMINING ILLUMINATION OF A PIXEL BY SHADOW PLANES 有权
标题翻译：用于通过阴影平面确定像素的照明的系统和方法
公开(公告)号：US20060202941A1
公开(公告)日：2006-09-14
申请号：US10906852
申请日：2005-03-09
申请人： Stephen Morein , Larry Seiler , Michael Doggett , Jocelyn Houle
发明人： Stephen Morein , Larry Seiler , Michael Doggett , Jocelyn Houle
IPC分类号： G09G3/36
CPC分类号： G06T15/50 , G06T15/005 , G06T15/60 , G06T15/80 , G06T2215/12
摘要： A graphics processing circuit includes a pixel shader operative to provide pixel color information in response to image data representing a scene to be rendered; a texture circuit, coupled to the pixel shader, operative to determine a luminance value to be applied to a pixel of interest based on the luminance values of the pixels that define a plane including the pixel of interest; and a render back end circuit, coupled to the texture circuit, operative to compute the luminance values from a shadow map that specifies the distance from the light source of the nearest object at a plurality of locations. A pixel illumination method includes receiving color information for a pixel to be rendered, defining a plane containing at least one pixel of interest, the plane including a plurality of planar values; comparing the plurality of planar values to a corresponding set of distance values; determining a luminance value for the at least one pixel of interest; and applying the luminance value to the at least one pixel of interest.
摘要翻译：图形处理电路包括像素着色器，用于响应于表示要渲染的场景的图像数据而提供像素颜色信息; 耦合到像素着色器的纹理电路，用于基于限定包括感兴趣像素的平面的像素的亮度值来确定要施加到感兴趣像素的亮度值; 以及耦合到纹理电路的渲染后端电路，用于从阴影图计算亮度值，所述阴影贴图指定在多个位置处距离最近物体的光源的距离。像素照明方法包括：接收要渲染的像素的颜色信息，定义包含至少一个感兴趣像素的平面，所述平面包括多个平面值; 将所述多个平面值与相应的一组距离值进行比较; 确定所述感兴趣的所述至少一个像素的亮度值; 以及将所述亮度值应用于所述至少一个感兴趣的像素。

6. 发明授权

US09082228B2 Analytical motion blur rasterization with compression 有权
标题翻译：分析运动模糊光栅化与压缩
公开(公告)号：US09082228B2
公开(公告)日：2015-07-14
申请号：US13004928
申请日：2011-01-12
申请人： Carl Johan Gribel , Michael Doggett , Tomas G. Akenine-Möller
发明人： Carl Johan Gribel , Michael Doggett , Tomas G. Akenine-Möller
IPC分类号： G09G5/00 , G06K9/48 , G06T11/40 , G06T13/80 , G06T9/00 , H04N19/90 , H04N19/436
CPC分类号： G06T5/003 , G06F17/16 , G06T9/00 , G06T11/40 , G06T13/80 , H04N19/436 , H04N19/90
摘要： A rasterizer, based on time-dependent edge equations, computes analytical visibility in order to render accurate motion blur. An oracle-based compression algorithm for the time intervals lowers the frame buffer requirements. High quality motion blurred scenes can be rendered using a rasterizer with rather low memory requirements. The resulting images may contain motion blur for both opaque and transparent objects.
摘要翻译：基于时间依赖边缘方程的光栅化器计算分析可视性以便呈现精确的运动模糊。用于时间间隔的基于oracle的压缩算法降低了帧缓冲区的要求。可以使用具有相当低内存要求的光栅化器来渲染高质量运动模糊场景。所得到的图像可能包含不透明和透明对象的运动模糊。

7. 发明授权

US07924281B2 System and method for determining illumination of a pixel by shadow planes 有权
标题翻译：用于通过阴影平面确定像素的照明的系统和方法
公开(公告)号：US07924281B2
公开(公告)日：2011-04-12
申请号：US10906852
申请日：2005-03-09
申请人： Stephen L. Morein , Larry D. Seiler , Michael Doggett , Jocelyn Houle
发明人： Stephen L. Morein , Larry D. Seiler , Michael Doggett , Jocelyn Houle
IPC分类号： G06T15/50
CPC分类号： G06T15/50 , G06T15/005 , G06T15/60 , G06T15/80 , G06T2215/12
摘要： A graphics processing circuit includes a pixel shader operative to provide pixel color information in response to image data representing a scene to be rendered; a texture circuit, coupled to the pixel shader, operative to determine a luminance value to be applied to a pixel of interest based on the luminance values of the pixels that define a plane including the pixel of interest; and a render back end circuit, coupled to the texture circuit, operative to compute the luminance values from a shadow map that specifies the distance from the light source of the nearest object at a plurality of locations. A pixel illumination method includes receiving color information for a pixel to be rendered, defining a plane containing at least one pixel of interest, the plane including a plurality of planar values; comparing the plurality of planar values to a corresponding set of distance values; determining a luminance value for the at least one pixel of interest; and applying the luminance value to the at least one pixel of interest.
摘要翻译：图形处理电路包括像素着色器，用于响应于表示要渲染的场景的图像数据而提供像素颜色信息; 耦合到像素着色器的纹理电路，用于基于限定包括感兴趣像素的平面的像素的亮度值来确定要施加到感兴趣像素的亮度值; 以及耦合到纹理电路的渲染后端电路，用于从阴影图计算亮度值，所述阴影贴图指定在多个位置处距离最近物体的光源的距离。像素照明方法包括：接收要渲染的像素的颜色信息，定义包含至少一个感兴趣像素的平面，所述平面包括多个平面值; 将所述多个平面值与相应的一组距离值进行比较; 确定所述感兴趣的所述至少一个像素的亮度值; 以及将所述亮度值应用于所述至少一个感兴趣的像素。

8. 发明授权

US08330767B2 Method and apparatus for angular invariant texture level of detail generation 有权
标题翻译：细节生成角度不变纹理水平的方法和装置
公开(公告)号：US08330767B2
公开(公告)日：2012-12-11
申请号：US12409592
申请日：2009-03-24
申请人： Konstantine Iourcha , Michael Doggett
发明人： Konstantine Iourcha , Michael Doggett
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A method and apparatus for angular invariant texture level of detail calculation is disclosed. The method includes a determination for a LOD that determines angular invariant LODs that result in efficient ASIC hardware implementation.
摘要翻译：公开了一种用于细节计算角度不变纹理水平的方法和装置。该方法包括确定导致有效ASIC硬件实现的角不变LOD的LOD。

9. 发明申请

US20100245374A1 METHOD AND APPARATUS FOR ANGULAR INVARIANT TEXTURE LEVEL OF DETAIL GENERATION 有权
标题翻译：方法和装置的细节不变纹理水平的细节生成
公开(公告)号：US20100245374A1
公开(公告)日：2010-09-30
申请号：US12409592
申请日：2009-03-24
申请人： Konstantine Iourcha , Michael Doggett
发明人： Konstantine Iourcha , Michael Doggett
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A method and apparatus for angular invariant texture level of detail calculation is disclosed. The method includes a determination for a LOD that determines angular invariant LODs that result in efficient ASIC hardware implementation.
摘要翻译：公开了一种用于细节计算角度不变纹理水平的方法和装置。该方法包括确定导致有效ASIC硬件实现的角不变LOD的LOD。

10. 发明申请

US20050225558A1 Two level cache memory architecture 有权
标题翻译：两级缓存内存架构
公开(公告)号：US20050225558A1
公开(公告)日：2005-10-13
申请号：US10820580
申请日：2004-04-08
申请人： Stephen Morein , Michael Doggett
发明人： Stephen Morein , Michael Doggett
IPC分类号： G06F12/00 , G06F12/08 , G06F13/00 , G06T1/60 , G09G5/36
CPC分类号： G06F12/0897 , G06F3/14 , G06T1/60 , G09G2360/121 , G09G2360/125 , G09G2360/126
摘要： A memory architecture for use in a graphics processor including a main memory, a level one (L1) cache and a level two (L2) cache, coupled between the main memory and the L1 cache is disclosed. The L2 cache stores overlapping requests to the main memory before the requested information is stored in the L1 cache. In this manner, overlapping requests for previously stored information is retrieved from the faster L2 cache as opposed to the relatively slower main memory.
摘要翻译：公开了一种用于图形处理器的存储器架构，包括主存储器，第一级（L1）高速缓存和第二级（L2）高速缓存，耦合在主存储器和L1缓存之间。在所请求的信息存储在L1缓存中之前，L 2缓存将重叠的请求存储到主存储器。以这种方式，与较慢的主存储器相比，从较快的L 2高速缓存中检索先前存储的信息的重叠请求。

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