Thanks for these samples Mathew. Nice to see how these so called primitive shaps come to life!!
This Programme will draw a Cone on the Screen and Rotate it.
[code=thinbasic]
' Cone in thinBASIC using TBGL...
'
uses "TBGL" ' thinBASIC OpenGL Library
uses "MATH" ' Used for Trigonometry
' Create, Show Our Window and Reset Status of all Keys...
'
Dim hWnd As dword = tbgl_createwindow("Cone - Press 'Esc' to Quit")
tbgl_showwindow
tbgl_getasynckeystate(-1)
' Dimension and Initialize any Variables...
'
dim Xrot, Yrot, Zrot as single ' X,Y and Z Rotation Variables
dim ConeRadius, ConeHeight as integer ' Radius and Height of Cone
dim ConeShade as single ' Level of Brightness
dim i as integer ' Polygon Drawing Loop Variable
' Main Programme Loop
'
while tbgl_iswindow(hWnd)
tbgl_clearframe ' Clear Screen
tbgl_camera 0, 0, 1, 0, 0, 0 ' Set Camera Position
tbgl_resetmatrix ' Clear the Current Matrix
tbgl_translate 0.0, 0.0, -5.0 ' Move Object into Screen by 5.0
tbgl_Rotate Xrot, 1.0, 0.0, 0.0 ' Rotation around the X-Axis
tbgl_Rotate Yrot, 0.0, 1.0, 0.0 ' Rotation around the Y-Axis
tbgl_Rotate Zrot, 0.0, 0.0, 1.0 ' Rotation around the Z-Axis
ConeRadius = 1
ConeHeight = 4
tbgl_color 255, 255, 255 ' Set Colour to White
tbgl_beginpoly %gl_triangle_fan
tbgl_vertex 0.0, (ConeHeight / 2) * -1, 0.0
for i = 0 to 36
ConeShade = Abs (13.25 * (18-i))
tbgl_color ConeShade, ConeShade, ConeShade
tbgl_vertex ConeRadius * cos(degtorad(i*10)), (ConeHeight / 2), ConeRadius * Sin(degtorad(i*10))
next
tbgl_endpoly
tbgl_color 128, 128, 128 ' Set Colour to Grey
tbgl_beginpoly %gl_polygon
for i = 0 to 36
tbgl_vertex ConeRadius * cos(degtorad((36-i)*10)), (ConeHeight / 2), ConeRadius * sin(degtorad((36-i)*10))
next
tbgl_endpoly
tbgl_drawframe ' Swap the Drawing Buffers
Xrot = Xrot + 0.1 ' X axis rotation
Yrot = Yrot + 0.2 ' Y axis rotation
Zrot = Zrot + 0.05 ' Z axis rotation
if tbgl_getwindowkeystate(hWnd, %vk_escape) then exit while
wend
tbgl_destroywindow ' Closes OpenGL Window
[/code]
Operating System: Windows 10 Home 64-bit
CPU: Intel Celeron N4000 CPU @ 1.10GHz
Memory: 4.00GB RAM
Graphics: Intel UHD Graphics 600
Thanks for these samples Mathew. Nice to see how these so called primitive shaps come to life!!
Acer Notebook: Win 10 Home 64 Bit, Core i7-4702MQ @ 2.2Ghz, 12 GB RAM, nVidia GTX 760M and Intel HD 4600
Raspberry Pi 3: Raspbian OS use for Home Samba Server and Test HTTP Server
Hi,
thanks a lot!,
it reminds me of optimization I have still not done on tbgl cylinders with one radus equal to zero
Bye,
Petr
Learn 3D graphics with ThinBASIC, learn TBGL!
Windows 10 64bit - Intel Core i5-3350P @ 3.1GHz - 16 GB RAM - NVIDIA GeForce GTX 1050 Ti 4GB
Thank's for the Comments you two.
Operating System: Windows 10 Home 64-bit
CPU: Intel Celeron N4000 CPU @ 1.10GHz
Memory: 4.00GB RAM
Graphics: Intel UHD Graphics 600
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