804a97b0a9f867816c409ce8ba037e93fd78c195
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Commits
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808e1eefc2 |
Clean up duplicates and dead code, and fix the + menu check (#85)
Refactoring round 9 covers everything since round 8 ( |
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f03ca0d382 |
Draw a shader in passes with a Pass node (#301)
A Blur stops at radius 8 in one pass, and bloom needs a softened copy of the picture beside the original. A Pass node cuts the graph: what feeds it is drawn into a picture of its own first, and the nodes that read a picture read that one when it feeds them. - Pass has color and alpha like the Output, a Resolution setting (Full, Half, Quarter) and a picture output. Texture color, Texture alpha, Sample texture, Blur and Texture size get a picture input. Unconnected it is the wearer's own picture, so the original stays readable beside any pass. - picture is a port type of its own. It plugs only into a picture input, not even into an any port. - The walk shared by the compilers can stop at a node (cut). The shader compiler draws each Pass it meets as a fragment of its own, earlier passes first. A ring through a picture says Feeds itself, and more than 8 passes say so at the node. - A pass draws untinted. The tint comes on when the last part reads a picture, so a particle source draws its passes once for all of its particles (user decision). - A pass's picture is the wearer's picture and its Padding, at the pixels of the picture times Resolution, at most 2048 per side. It is read with the picture's own filter and continues past its frame as the Output's Edge says. - PassPictures keeps one render texture per pass and wearer. It draws again only when picture, size, Padding or a uniform changed. A field's picture is a render texture that changes under the same id, so a field draws its passes every time. - Sprite, sliced sprite, text, particle source, field shader and the Shader tab's preview all draw passes. syncShader takes a fixed picture for a 9-slice, which holds its corners but keeps the margin. - texelAt and blur take the sampler they read. Existing shaders compile to the same program apart from that argument. - A field shader's Blur and Texture size count a pixel as a unit of the frame (uPixelScale), not of the screen. Before, a field's blur grew when zooming out and shrank when zooming in. This came with #170 and #300 and is fixed here because passes inherit it. - tools/perf-shaders.mjs and tools/perf-field-shaders.mjs measure two passes with GM_PERF_PASSES=1 and GM_PERF_PASS_RESOLUTION. Below Full an open Pass shrinks the picture first, as the wiki's recipe does. Found on the way: - Destroying the pictures before the shader made Pixi warn that a texture was still bound. The shader goes first now, and a picture of a new size is resized rather than replaced. - Two passes in a row could draw plain white the first time. Pixi builds the code that binds a program's resources once and finds them by position. A pass of one graph is often the same program as a pass of another with fewer slots, so it bound a placeholder. Every shader now declares all 8 pass slots and its uniform group. Tests: - Gate on melektaus-atx: 225 files, 3480 tests (3467 + 13), exit 0. - e2e 28 and 31 on melektaus-atx: 97 checks (94 + 3) and 44 checks (43 + 1), all passed, no Pixi warning in the console. - 28l-vii: a Blur across, a Pass and a Blur down draw the 5x5 spot of a Blur of Both (difference 0.000). On a grey sprite a pass's picture added to the original is 231/60/60, each tinted once. Two Passes in a row after a graph with one show red and green, not white. - 31v-iii: a Blur of 8 fades a field's frame edge over 8.0 units at 50 % and at 200 % zoom. - Counter-checks: a tinted pass fails 1 unit test. Pictures never bound fail both e2e checks (spot 0.20 instead of 0.04, 243/158/158). Pass slots by the number of passes draw #ffffff, and a field without its pixel scale ramps over 16 and 4 units: exactly the two new checks fail. - e2e sum 1716 is counted, not yet measured (1712 + 4). - Measured on stein2 (HD 630, one run per row): 50 field shaders at radius 8 go from 11.4 to 41.3 fps in two passes, 44.4 at radius 16 (three passes at Half). 800 sprites at radius 8 go from 13.9 to 24.5 fps. At radius 4 one pass stays faster from 400 sprites on. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |
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4716726b6b |
Let a shader move the corners of the picture it wears (#79)
A shader could only say what colour a pixel has. Where the picture is drawn was fixed to the four corners of its rectangle, so nothing could wave, bend or wobble. - The new node Vertex output takes x and y, in pixels of the picture, and moves every corner of the wearer's grid by them. The UVs stay with the corners, so the picture bends along. - Subdivisions on that node says how fine the grid is: cells per axis, 1 to 64, 8 by default. 1 is the plain quad. A shader without the node keeps the quad every sprite shares. - A graph holds one Vertex output at most. UV, Time, Property, Number and the math nodes may feed it, and one node may feed both outputs. - Texture color, Texture alpha, Sample texture, Texture size and Color cannot feed it. The node says "Not available per corner" and the shader does not compile. - Sprites, texts and the preview in the shader tab wear the grid. A nine-slice sprite and particles draw as if the node were not there. - Picking, the selection frame, the size and colliders stay with the rectangle. A wearer with a Vertex output is never culled, as with Padding, and with Padding the grid covers the room around the picture too. - tools/perf-shaders.mjs takes GM_PERF_SUBDIVISIONS to measure a grid against the plain quad. Measured on stein2 (Intel HD 630), frames per second, one run per row: at 800 sprites 58 with a shader on the quad, 46 with 8 cells, 41 with 32. Up to 400 sprites a grid hardly shows. Every sprite holds its own grid. Tests: - Gate on melektaus-atx: 220 files, 3416 tests, CHECK EXIT 0. - 15 new unit tests for the compiler and the grid. - Four new e2e checks in modules 28 and 30: a fixed offset moves the picture, 8 cells bend only the lower half where 1 cell shears it all, Texture alpha is refused at the node, a text moves. - e2e 28,30 on melektaus-atx: 110 checks, all pass. - The e2e total of 1699 is counted (1695 + 4), the full suite did not run. - No counter-probe, no screenshot. Not looked at: the preview, Time in the browser, flipped sprites, Padding together with the grid. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |
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e933fad446 |
Give a shader room to draw around the picture it wears (#69)
A shader ran only inside the rectangle of what wears it: the quad has the size of the sprite, and outside of it no fragment runs. An outline or a glow built with Sample texture was cut off at the border. The issue still spoke of Filter.padding, but since #77 the shader is no filter any more, the limit is the geometry. - The Output node has a number Padding next to Edge: so many pixels of the picture per side the wearer draws beyond it. 0 is the default and draws as before, 256 is the most. - The quad grows and its UVs grow with it, so the picture keeps its place and size. In the margin the UVs run on below 0 and above 1. - Transparent is a fourth Edge mode: outside of the picture there is nothing. It is cut in the fragment (texelAt), so it needs no copy of the picture with an address mode of its own. - Edge holds everywhere alike, also for Texture color, Texture alpha and unconnected inputs. - Padding above 0 with Edge on Clamp puts the hint "Padding with Clamp smears the border" on the Output. The shader still compiles. A chosen Clamp and the default cannot be told apart. - All four wearers draw the margin. A sprite counts in pixels of its frame, a text in its units, a particle source grows every particle about its centre. - A nine-slice sprite gets a ring around its nine fields, as wide as so many border pixels. The fields themselves stay. - Without a picture a pixel is one unit of the wearer's own size, or of the particle size. - Particles now take the Edge mode of their shader. It had no effect on them before. - An object wearing a padded shader is never culled, or its margin would vanish at the edge of the screen. - The preview in the shader tab shows the margin and leaves room for it. - Picking, the selection frame, the size and the collider stay with the rectangle without the margin. Tests: - Gate on melektaus-atx right before this commit: 216 files, 3336 tests (3319 + 17), exit 0. - e2e 28,30,31,37,41 on melektaus-atx: 178 checks, all pass. e2e 1-37,47,48,58 ran before the last change (no culling with padding): 1281 checks, all pass. - 17 new unit tests: the compiler (padding, Transparent, the hint) and the geometry (quad, nine-slice ring). - Seven new e2e checks: four at the sprite in module 28, one each for text, particles and nine-slice. - 17 unit counter-probes all fail their tests. Three browser counter-probes fail their checks (5, 3 and 1 of them). - Three screenshots looked at: the sprite with Clamp and margin in the scene, the preview in the shader tab, the text. - The e2e sum of 1687 is counted (1680 + 7), the full suite and the smokes did not run. - Not seen: the hint at the node in a picture, particles and nine-slice in a picture, the game view while playing, sprites without a picture, vector and pixel art pictures. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> |