asgardius/virtualx-engine
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Implement FLAG_UV*_USE_WORLD_TRIPLANAR

Browse source 
Implements triplanar mapping in world space for UV1 and UV2
when the respective flags are enabled.
This commit is contained in:
CaptainProton42 2020-11-21 12:14:36 +01:00
parent ec3f220098
commit 856312ca6d
1 changed files with 14 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
scene/resources/material.cpp
View file

@ -829,16 +829,26 @@ void BaseMaterial3D::_update_shader() {
}
if (flags[FLAG_UV1_USE_TRIPLANAR]) {
code += "\tuv1_power_normal=pow(abs(NORMAL),vec3(uv1_blend_sharpness));\n";
if (flags[FLAG_UV1_USE_WORLD_TRIPLANAR]) {
code += "\tuv1_power_normal=pow(abs(mat3(WORLD_MATRIX) * NORMAL),vec3(uv1_blend_sharpness));\n";
code += "\tuv1_triplanar_pos = (WORLD_MATRIX * vec4(VERTEX, 1.0f)).xyz * uv1_scale + uv1_offset;\n";
} else {
code += "\tuv1_power_normal=pow(abs(NORMAL),vec3(uv1_blend_sharpness));\n";
code += "\tuv1_triplanar_pos = VERTEX * uv1_scale + uv1_offset;\n";
}
code += "\tuv1_power_normal/=dot(uv1_power_normal,vec3(1.0));\n";
code += "\tuv1_triplanar_pos = VERTEX * uv1_scale + uv1_offset;\n";
code += "\tuv1_triplanar_pos *= vec3(1.0,-1.0, 1.0);\n";
}
if (flags[FLAG_UV2_USE_TRIPLANAR]) {
code += "\tuv2_power_normal=pow(abs(NORMAL), vec3(uv2_blend_sharpness));\n";
if (flags[FLAG_UV2_USE_WORLD_TRIPLANAR]) {
code += "\tuv2_power_normal=pow(abs(mat3(WORLD_MATRIX) * NORMAL), vec3(uv2_blend_sharpness));\n";
code += "\tuv2_triplanar_pos = (WORLD_MATRIX * vec4(VERTEX, 1.0f)).xyz * uv2_scale + uv2_offset;\n";
} else {
code += "\tuv2_power_normal=pow(abs(NORMAL), vec3(uv2_blend_sharpness));\n";
code += "\tuv2_triplanar_pos = VERTEX * uv2_scale + uv2_offset;\n";
}
code += "\tuv2_power_normal/=dot(uv2_power_normal,vec3(1.0));\n";
code += "\tuv2_triplanar_pos = VERTEX * uv2_scale + uv2_offset;\n";
code += "\tuv2_triplanar_pos *= vec3(1.0,-1.0, 1.0);\n";
}