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Fix LinearDepth calculation for GLES3 

This change will calculate the depth ndc differently for GLES3 and Vulkan as described in here:
stable:
https://docs.godotengine.org/en/stable/tutorials/shaders/advanced_postprocessing.html
godot 4 with vulkan:
https://docs.godotengine.org/en/latest/tutorials/shaders/advanced_postprocessing.html
This commit is contained in:
Patrick 2022-08-31 21:00:13 +02:00
parent 736632ee7e
commit 323ff657c0
1 changed files with 5 additions and 1 deletions
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6
scene/resources/visual_shader_nodes.cpp
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@ -7247,7 +7247,11 @@ String VisualShaderNodeProximityFade::generate_code(Shader::Mode p_mode, VisualS
String proximity_fade_distance = vformat("%s", p_input_vars[0]);
code += " float __depth_tex = textureLod(DEPTH_TEXTURE, SCREEN_UV, 0.0).r;\n";
code += " vec4 __depth_world_pos = INV_PROJECTION_MATRIX * vec4(SCREEN_UV * 2.0 - 1.0, __depth_tex, 1.0);\n";
if (!RenderingServer::get_singleton()->is_low_end()) {
code += " vec4 __depth_world_pos = INV_PROJECTION_MATRIX * vec4(SCREEN_UV * 2.0 - 1.0, __depth_tex, 1.0);\n";
} else {
code += " vec4 __depth_world_pos = INV_PROJECTION_MATRIX * vec4(vec3(SCREEN_UV, __depth_tex) * 2.0 - 1.0, 1.0);\n";
}
code += " __depth_world_pos.xyz /= __depth_world_pos.z;\n";
code += vformat(" %s = clamp(1.0 - smoothstep(__depth_world_pos.z + %s, __depth_world_pos.z, VERTEX.z), 0.0, 1.0);\n", p_output_vars[0], p_input_vars[0]);