computer graphics 3d display

Ming-Te ChiDepartment of Computer Science National Chengchi University

3D Display Concept3D Viewer Categories3D Display Device Overview3D Display Device SettingSimple 3D Project Google Sketch Up

Depth sensation is the ability to move accurately, or to respond consistently, based on the distances of objects in an environment binocular cues monocular cue

Stereopsis or retinal(binocular) disparity

Convergence Shadow Stereopsis

Right eye

Left eye

Stereoscopic technology provides a different image to the viewer's left and right eyes. 

View of Boston, c. 1860

With glassesActive

Liquid crystal shutter glasses

Passive polarized glasses Complementary color anaglyphs Head-mounted display

Without glasses• Wiggle stereoscopy

• Autostereoscopy Parallax barrier Lenticular lens

3D Monitor Device 3D Monitor from iZ3D SAMSUNG SyncMaster 2233RZ Acer GD245HQ

3D Glasses NVIDIA 3D Vision glasses Polarizing glasses

顏色過濾原理 左”紅”右”藍”

缺點 : 灰階 or 單一色調

“兩層”偏光面板，前面板與後面板 分別顯示左、右眼影像 若同分別使用”左”，”右”兩眼觀看，成像

效果不同

技術原理 實際畫面

系統需求與限制 120Hz Refresh Rate nVidia Graphics Card OS: Windows Vista / 7

Input 3D 攝影機

Output 3D Vision Photo Viewer NVIDIAStereoPlayer 

實際畫面

glClear();glMatrixMode(GL_MODELVIEW); glLoadIdentity(); /* the default

matrix */glPushMatrix(); glDrawBuffer(GL_BACK_LEFT); gluLookAt(-IOD/2.0, 0.0,

EYE_BACK, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); <viewing transforms> <modeling transforms> draw();

glClear();glPopMatrix(); glPushMatrix() glDrawBuffer(GL_BACK_RIGHT); gluLookAt(IOD/2.0, 0.0, EYE_BACK, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); <viewing transforms> <modeling transforms> draw();glPopMatrix();

glutSwapBuffer();

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE); // set camera for blue eye, red will be filtered. // draw scene

glClear(GL_DEPTH_BUFFER_BIT); glEnable(GL_BLEND); glBlendFunc(GL_ONE, GL_ONE); glColorMask(GL_FALSE, GL_FALSE, GL_TRUE, GL_TRUE); // set camera for red eye, blue will be filtered. // draw scene

下載範例程式http://www.cs.nccu.edu.tw/~mtchi/cg

11/

直接執行 Original folder 中 .exe 執行檔

嘗試利用 CodeBlock 編譯此專案並找出此程式如何製作出紅藍立體效果

Autodesk 3ds Max Mayahttp://www.autodesk.com.tw/adsk/servlet/home?

siteID=1170616&id=15814201

Google Sketchup http://sketchup.google.com/

Blender http://www.cs.nccu.edu.tw/~g9902/blender/

Sketch UP provides an intuitive modeling

Toolbars

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