TY - GEN
T1 - Low complexity subdivision algorithm to approximate Phong shading using forward difference
AU - Sheu, Teng Yao
AU - Van, Lan-Da
AU - Jung, Tzung Rung
AU - Lin, Cheng Wei
AU - Chang, Ting Wei
PY - 2009/10/26
Y1 - 2009/10/26
N2 - In this paper, we proposed a low complexity subdivision algorithm to approximate Phong shading. It is a combination of a subdivision scheme using forward difference and a recovery scheme to prevent rasterization anomaly. Dual space subdivision, triangle filtering and variable sharing schemes are also proposed to reduce the computation. Compared with the conventional recursive subdivision shading algorithm, the proposed algorithm reduces 46.6% memory access, 80% projective transformations and perspective division, 93.75% clipping/culling tests and 60% 3x3 matrix multiplications for setup operation.
AB - In this paper, we proposed a low complexity subdivision algorithm to approximate Phong shading. It is a combination of a subdivision scheme using forward difference and a recovery scheme to prevent rasterization anomaly. Dual space subdivision, triangle filtering and variable sharing schemes are also proposed to reduce the computation. Compared with the conventional recursive subdivision shading algorithm, the proposed algorithm reduces 46.6% memory access, 80% projective transformations and perspective division, 93.75% clipping/culling tests and 60% 3x3 matrix multiplications for setup operation.
UR - http://www.scopus.com/inward/record.url?scp=70350192424&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2009.5118277
DO - 10.1109/ISCAS.2009.5118277
M3 - Conference contribution
AN - SCOPUS:70350192424
SN - 9781424438280
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 2373
EP - 2376
BT - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
T2 - 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Y2 - 24 May 2009 through 27 May 2009
ER -