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refactor(render3d): textures behind gpu.ludic, their sampler state recorded

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Texture creation, 2D and array uploads, pixel packing, filters, wraps, comparison, border,
anisotropy, mipmaps, texture units, read-backs and freeing now go through gpu_tex_* and
gpu_bind_sampler, and no other file names them. Each call is the one GL call it replaces,
in the same order, so OpenGL renders bit-identically at the fixed viewpoints and the game's
self-tests report what they did before.

What those calls say about a texture - size, format, layers, min and mag filter, wraps,
comparison, mipmaps, anisotropy - is recorded per handle as it is set: a backend with
immutable images and separate sampler objects creates both from exactly that.
r3d_bind_tex takes a texture kind (GPU_TEX2D / GPU_TEX2D_ARRAY) instead of a GL target.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-15 10:29:28 +03:00
parent 43c379aa0f
commit 4d3479d431
10 changed files with 201 additions and 113 deletions
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4
packages/ludic.render3d/water.ludic
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@ -151,8 +151,8 @@ function water_draw(depth_tex: int) -> void {
# bind on its own unit first: generating the mip chain re-binds the texture on the active unit,
# and it must not displace the depth texture the shader reads for the shore
r3d_bind_2d(p, "u_refl", 1, water_refl.color); ron = F_ONE
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gl_generate_mipmap(GL_TEXTURE_2D)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gpu_tex_mips(GPU_TEX2D)
}
r3d_bind_2d(p, "u_depth", 0, depth_tex)
r3d_bind_2d(p, "u_scene", 2, post_scene.color)