- Raytracer 320x240, for RX65N Envision kit/RX72N Envision kit
- Raytracer 480x272 for RX65N Envision kit
※Rendering from a previous version (slightly faster due to optimization in the latest code) RX65N
Ray tracing rendering program using RX microcontroller
- main.cpp
- raytracer.hpp
- RX62N/Makefile
- RX631/Makefile
- RX24T/Makefile
- RX64M/Makefile
- RX71M/Makefile
- RX65N/Makefile
- RX66T/Makefile
- RX72T/Makefile
- RX72N/Makefile
- If the base crystal is different, change the typedef parameter.
- Makefile declares the set frequency for each module.
- RX231: 54MHz (12MHz)
- RX62N: 96MHz (12MHz)
- RX631: 96MHz (12MHz)
- RX24T: 80MHz (10MHz)
- RX64M: 120MHz (12MHz)
- RX71M: 240MHz (12MHz)
- RX65N: 120MHz (12MHz)
- RX66T: 160MHz (10MHz)
- RX72T: 192MHz (16MHz)
- RX72N: 240MHz (16MHz)
- Connect the indicator LED to the specified port.
- Connect the USB serial signal and the SCI1 (RX24T, RX66T, RX64M, RX71M) port of the setting.
- RX65N Envision kit uses the attached LCD (480x272).
- RX24T, RX66T, RX72T are 8-bit connection (R61505W LCD Controller)
- RX64M, RX71M are 16-bit connection (R61505W LCD Controller)
- Refer to "main.cpp" for the connection port with the R61505W LCD.
- RX72N Envision kit uses the attached LCD (480x272).
- Connect a USB serial converter to the port specified in SCI.
- Connect the RXD terminal on the microcontroller side and the TXD of USB serial.
- Connect the TXD terminal on the microcontroller side and the RXD of USB serial.
- In the RX72N Envision Kit, the CN8 connector is a USB serial connection.
- Move to each platform directory and make.
- Write the raytracer_sample.mot file to the microcontroller.
- Draw with raytracing at 320x240 resolution (if you have drawing hardware).
- Render time displayed on LCD and console (milliseconds)
- LED flashes at 0.25 second intervals.
- TX (send) and RX (receive) are performed on the port specified in SCI.
- Check with TeraTerm.
- TeraTerm serial settings: 115200 baud, 8-bit data, 1 stop, no parity.
- In RX65N/RX72N Envision kit, press SW2 on the back side to change the number of samplings and resolution.
- The process of sending font drawing to the LCD by the port bus is quite large.
- In the original code, the rendering time is displayed on the LCD for each line, but it is commented out.
| Microcontroller | Core | FPU | fsqrt | Frequency [MHz] | Drawing method | Time [ms] |
|---|---|---|---|---|---|---|
| RX231 | RXv2 | O | O | 54 | 8 bits, port-bus | 1736 |
| RX62N | RXv1 | O | X | 96 | 8 bits, port-bus | 1860 |
| RX631 | RXv1 | O | X | 96 | 8 bits, port-bus | 1868 |
| RX24T | RXv2 | O | O | 80 | 8 bits, port-bus | 1224 |
| RX26T | RXv3 | O | O | 120 | 8 bits, port-bus | 692 |
| RX65N | RXv2 | O | O | 120 | Frame Memory | 784 |
| RX64M | RXv2 | O | O | 120 | 16 bits, port-bus | 751 |
| RX66T | RXv3 | O | O | 160 | 8 bits, port-bus | 602 |
| RX72T | RXv3 | O | O | 192 | 8 bits, port-bus | 464 |
| RX71M | RXv2 | O | O | 240 | 16 bits, port-bus | 439 |
| RX72N | RXv3 | O | O | 240 | Frame Memory | 361 |
Reference (Ray Tracer): http://www.cs.cmu.edu/~ph/
Other: MIT