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Commit semi-working stamp frag shader.

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This commit is contained in:
p620
2020-10-31 14:06:51 +03:00
parent 0a32d274c2
commit eeaebefe64
1 changed files with 5 additions and 10 deletions
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15
src/glsl/terrain_frag.glsl
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@@ -212,16 +212,11 @@ void main()
vec2 topleft = cursor_position.xz;
topleft.x -= outer_cursor_radius;
topleft.y -= outer_cursor_radius;
vec2 relTopleft = topleft - cursor_position.xz;
vec2 rotatedTopleft;
rotatedTopleft.x = relTopleft.x * sin(angle) - relTopleft.y * cos(angle);
rotatedTopleft.y = relTopleft.y * sin(angle) + relTopleft.x * cos(angle);
vec2 posRel2 = (vary_position.xz - rotatedTopleft) / (outer_cursor_radius * 2.0f);
// vec2 texcoord = (vary_position.xz - topleft) / (outer_cursor_radius * 2.0f) - 0.5;
// vec2 rotatedTexcoord;
// rotatedTexcoord.x = texcoord.x * sin(angle) + texcoord.y * cos(angle) + 0.5;
// rotatedTexcoord.y = texcoord.y * sin(angle) + texcoord.x * cos(angle) + 0.5;
out_color.rgb = mix(out_color.rgb, texture(stampBrush, posRel2).rgb
vec2 texcoord = (vary_position.xz - topleft) / (outer_cursor_radius * 2.0f) - 0.5;
vec2 rotatedTexcoord;
rotatedTexcoord.x = texcoord.x * sin(angle) + texcoord.y * cos(angle) + 0.5;
rotatedTexcoord.y = texcoord.y * sin(angle) + texcoord.x * cos(angle) + 0.5;
out_color.rgb = mix(out_color.rgb, texture(stampBrush, rotatedTexcoord).rgb
, 1.0 * (int(length(vary_position.xz - cursor_position.xz) / outer_cursor_radius < 1.0))
* (1.0 - length(vary_position.xz - cursor_position.xz) / outer_cursor_radius));