65 lines
3.6 KiB
Plaintext
65 lines
3.6 KiB
Plaintext
View3ds 0.076 - tiny viewer to .3ds and .asc files with several graphics
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effects implementation.
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What's new?
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1. Detecting manifold chunks procedure based on kind of sorted pivot
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table. Chunks are counted and this number displayed.
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2. New calculating normal vectors proc that use some data produced
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by new chunks routine. Now big object loading is fast. I load object that
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contains ~500000 vertices, ~700000 faces and ~2000 0000 unique edges
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in few seconds on i5 2cond gen. Earlier such objects calculating was
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rather above time limits.
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3. On http://board.flatassembler.net occasionaly there are some disccusions
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about optimizing. Some clever people, wich skills and competence I trust,
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claims - for CPU's manufactured last ~15 years size of code is crucial
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for speed. (Better utilize CPU cache).
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So I wrote some 'movsd' mnemonics instead 'mov [edi],sth'; 'loop' instead
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'dec ecx,jnz sth'. Moreover I come back to init some local varibles
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by 'push' (flat_cat.inc). I took effort to change divisions to
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multiplications two_tex.inc (works ok in fpu only Ext = NON mode and
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of course in Ext = SSE3 mode), grd_tex.inc (single line not parallel
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muls, whole drawing routine 4 divs instead 27 divisions),
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bump_tex.inc - 3 divs in SSE2 mode.s See sources for details.
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4. Editor button allows now editing by vertex all above 65535 vert objects.
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Buttons description:
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1. rotary: choosing rotary axle: x, y, x+y, keys - for object translate
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using keyboard. .
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2. shd. model: choosing shading model: flat, grd (smooth), env (spherical
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environment mapping, bump (bump mapping), tex (texture mapping),
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pos (position shading depend), dots (app draws only points - nodes of object),
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txgrd (texture mapping + smooth shading), 2tex (texture mapping + spherical
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environment mapping), bmap (bump + texture mapping), cenv (cubic environment
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mapping), grdl (Gouraud lines - edges only), rphg (real Phong), glas (glass effect),
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ptex (real Phong + texturing + transparency).
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3. speed: idle, full.
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4,5. zoom in, out: no comment.
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6. ray shadow: calc ray casted shadows.
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7. culling: backface culling on/ off.
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8. rand. light: Randomize 3 unlinear lights( so called Phong's illumination).
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9. Blur: blur N times; N=0,1,2,3,4,5
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10.11,12,13. loseless operations (rotary 90, 180 degrees).
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12. emboss: Do emboss effect( flat bumps ), use 'bumps deep' button to do edges
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more deep.
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13. fire: do motion blur ( looks like fire ).
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14. move: changes meaning x,y,z +/- buttons -> obj: moving object, camr: moving
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camera, wave: x,y +/- increase, decrease wave effect frequency and amplitude.
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15. generate: Generates some objects: node, Thorn Crown, heart...
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16. bumps: random, according to texture.
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17. bumps deep -> create bumps deeper or lighter.
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18. re-map tex -> re-map texture and bump map coordinates, to change spherical
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mapping around axle use 'xchg' and 'mirror' buttons, then press 're-map tex' button.
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19. bright + -> increase picture brightness.
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20. bright - -> decrease picture brightness.
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21. wav effect -> do effect based sine function.
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22. editor -> setting editing option. If is "on" then red bars are draw according to each
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vertex, Pressing and moving left mouse button (cursor must be on handler)- change
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vertex position. If left mouse button is released apply current position. You may also
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decrease whole handlers count by enable culling (using appropriate button) - some
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back handlers become hidden.
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Maciej Guba XII 2021
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