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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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28
packages/ludic.render3d/scatter.ludic
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@ -475,12 +475,12 @@ function impostor_bake(model: Model, tiles: int, tw: int, th: int) -> Impostor {
gl_delete_framebuffers(1, ids)
ids[0] = rb
gl_delete_renderbuffers(1, ids)
gl_bind_texture(GL_TEXTURE_2D, im.albedo)
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gl_generate_mipmap(GL_TEXTURE_2D)
gl_bind_texture(GL_TEXTURE_2D, im.normal)
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gl_generate_mipmap(GL_TEXTURE_2D)
gpu_tex_bind(GPU_TEX2D, im.albedo)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gpu_tex_mips(GPU_TEX2D)
gpu_tex_bind(GPU_TEX2D, im.normal)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gpu_tex_mips(GPU_TEX2D)
gl_check("impostor bake")
if sc_debug_dump { tex_dump_alpha = true; tex_dump(im.albedo, aw, th, "build/atlas_alpha.ppm"); tex_dump_alpha = false }
return im
@ -1064,12 +1064,12 @@ function carpet_bake(layers: []Layer, count: int, tile: int, res: int) -> int {
ids[0] = rb
gl_delete_renderbuffers(1, ids)
gpu_buffer_free(buf)
gl_bind_texture(GL_TEXTURE_2D, tex)
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
gl_tex_parameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gl_tex_parameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, tex_anisotropy)
gl_generate_mipmap(GL_TEXTURE_2D)
gpu_tex_bind(GPU_TEX2D, tex)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
gpu_tex_param(GPU_TEX2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
gpu_tex_paramf(GPU_TEX2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, tex_anisotropy)
gpu_tex_mips(GPU_TEX2D)
gl_check("carpet bake")
return tex
}
@ -1103,8 +1103,8 @@ function scatter_clear_all() -> void {
# layer_cards built this layer's crossed card and its atlas itself
if l.card and l.n_lods == 0 and l.model != null { for k in 0 .. len(l.model.prims) { mesh_free(l.model.prims[k].mesh) } }
if l.card and l.atlas != null {
ids[0] = l.atlas.albedo; gl_delete_textures(1, ids)
ids[0] = l.atlas.normal; gl_delete_textures(1, ids)
gpu_tex_free(l.atlas.albedo)
gpu_tex_free(l.atlas.normal)
}
}
sc_layers = new []Layer