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Update README.md

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Miloslav Číž 2020-06-18 13:11:52 +00:00
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@ -81,14 +81,15 @@ The basic philosophy is:
- Use the provided Python tools to convert your model and textures to C arrays, include them in your
program and set up the scene struct.
- Init the 3D models and the scene with provided init functions (`S3L_init*`), set the position of the camera.
- Call `S3L_drawScene` on the scene to perform the frame rendering. This will cause the
library to start calling the `S3L_PIXEL_FUNCTION` in order to draw the frame. You can of course
- Call `S3L_newFrame` to prepare for rendering, then call `S3L_drawScene` on the scene to perform the frame rendering.
This will cause the library to start rendering and calling the `S3L_PIXEL_FUNCTION` in order to draw the frame. You can of course
modify the function or write a similar one of your own using the more low-level functions which are
also provided.
- Fixed point arithmetics is used as a principle, but there is no abstraction above it, everything is simply
an integer (`S3L_Unit` type). The space is considered to be a dense grid, and what would normally be
a 1.0 float value is an int value equal to `S3L_FRACTIONS_PER_UNIT` units. Numbers are normalized by this
constant, so e.g. the sin function returns a value from `-S3L_FRACTIONS_PER_UNIT` to `S3L_FRACTIONS_PER_UNIT`.
constant, so e.g. the sin function returns a value from `-S3L_FRACTIONS_PER_UNIT` to `S3L_FRACTIONS_PER_UNIT`. You have to
pass numbers of this format to the library functions, but of course you may chooe to use floats in other places of your program.
## tips/troubleshooting