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author | Shashank Shekhar <cmdr2> | 2022-05-09 09:07:28 +0300 |
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committer | Jeroen Bakker <jeroen@blender.org> | 2022-05-09 09:07:37 +0300 |
commit | 90298c24a2cab088093006ef92a685d41c5a6ac2 (patch) | |
tree | 3115784913ecba6d32af5055cf0af663719148e6 /source/blender/gpu/tests | |
parent | 2a2261d7e1933a1f5cfe478dbf109888c91697e8 (diff) |
EEVEE & Viewport: Add a built-in shader called 3D_IMAGE, and expose to the python API
Adds an example python script to the documentation for the 3D_IMAGE shader.
The **use-case** is to draw textures with 3D vertex positions, in XR views as well as non-XR views (in a simpler manner).
**Testing**: I've tested that this compiles and works on my Macbook (with the example python script included in this change). I don't have access to a Windows or Linux machine right now, but this change doesn't look platform-specific and no new glsl shaders have been added or edited by this change. I'll try to get access to a Windows machine, but if someone does have one, I'd be really grateful if they could try this change. Thanks!
**Problem addressed**: The existing 2D_IMAGE shader (exposed in the python API) gets near-clipped when drawn in the
XR view, regardless of the near-clip settings. Additionally, the 2D_IMAGE shader only accepts 2D
positions for the image vertices, which means drawing textures in 3D requires providing
2D coordinates and then pushing a transform-rotate-scale matrix to the GPU, even for
non-XR (i.e. WINDOW) views. The 3D_IMAGE shader is simpler: it accepts 3D vertex positions, and doesn't require
any additional work by the scripter.
**Workaround**: The current workaround is to use custom shaders in the python script.
**Non-intrusive change**: No new glsl shaders were added. This change just bundles two existing shaders: the vertex shader used
by the 3D_IMAGE_MODULATE_ALPHA shader, and the fragment shader used by the 2D_IMAGE shader.
Reviewed By: #eevee_viewport, jbakker
Differential Revision: https://developer.blender.org/D14832
Diffstat (limited to 'source/blender/gpu/tests')
-rw-r--r-- | source/blender/gpu/tests/gpu_shader_builtin_test.cc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/source/blender/gpu/tests/gpu_shader_builtin_test.cc b/source/blender/gpu/tests/gpu_shader_builtin_test.cc index 6ef8a032a73..5dc70a8bf0f 100644 --- a/source/blender/gpu/tests/gpu_shader_builtin_test.cc +++ b/source/blender/gpu/tests/gpu_shader_builtin_test.cc @@ -35,6 +35,7 @@ static void test_shader_builtin() test_compile_builtin_shader(GPU_SHADER_2D_UNIFORM_COLOR, GPU_SHADER_CFG_DEFAULT); test_compile_builtin_shader(GPU_SHADER_2D_FLAT_COLOR, GPU_SHADER_CFG_DEFAULT); test_compile_builtin_shader(GPU_SHADER_2D_SMOOTH_COLOR, GPU_SHADER_CFG_DEFAULT); + test_compile_builtin_shader(GPU_SHADER_3D_IMAGE, GPU_SHADER_CFG_DEFAULT); test_compile_builtin_shader(GPU_SHADER_2D_IMAGE, GPU_SHADER_CFG_DEFAULT); test_compile_builtin_shader(GPU_SHADER_2D_IMAGE_COLOR, GPU_SHADER_CFG_DEFAULT); test_compile_builtin_shader(GPU_SHADER_2D_IMAGE_DESATURATE_COLOR, GPU_SHADER_CFG_DEFAULT); |