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fix: space transformations in WorldPositionFromDepth visual shader node generation

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This commit is contained in:
Alex Threlfo
2024-12-13 18:42:03 +11:00
parent aa8d9b83f6
commit a85b0279fd
1 changed files with 5 additions and 4 deletions
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9
scene/resources/visual_shader_nodes.cpp
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@ -1747,12 +1747,13 @@ String VisualShaderNodeWorldPositionFromDepth::generate_code(Shader::Mode p_mode
code += " float __log_depth = textureLod(" + make_unique_id(p_type, p_id, "depth_tex") + ", " + uv + ", 0.0).x;\n";
if (!RenderingServer::get_singleton()->is_low_end()) {
code += " vec4 __depth_view = INV_PROJECTION_MATRIX * vec4(" + uv + " * 2.0 - 1.0, __log_depth, 1.0);\n";
code += " vec4 __ndc = vec4(" + uv + " * 2.0 - 1.0, __log_depth, 1.0);\n";
} else {
code += " vec4 __depth_view = INV_PROJECTION_MATRIX * vec4(vec3(" + uv + ", __log_depth) * 2.0 - 1.0, 1.0);\n";
code += " vec4 __ndc = vec4(vec3(" + uv + ", __log_depth) * 2.0 - 1.0, 1.0);\n";
}
code += " __depth_view.xyz /= __depth_view.w;\n";
code += vformat(" %s = (INV_VIEW_MATRIX * __depth_view).xyz;\n", p_output_vars[0]);
code += " vec4 __position_world = INV_VIEW_MATRIX * INV_PROJECTION_MATRIX * __ndc;\n";
code += " __position_world.xyz /= __position_world.w;\n";
code += vformat(" %s = __position_world.xyz;\n", p_output_vars[0]);
code += " }\n";
return code;