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maybe ground.vert.ts normal is wrong？ #78

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ilimei opened this issue Dec 26, 2021 · 0 comments

ilimei commented Dec 26, 2021

heightmap is corner.groundHeight + corner.layerHeight - 2.0
cliffHeightMap is corner.groundHeight

and ground.vert.ts

  float hL = texture2D(u_heightMap, vec2(base - vec2(1.0, 0.0)) / (u_size)).a;
  float hR = texture2D(u_heightMap, vec2(base + vec2(1.0, 0.0)) / (u_size)).a;
  float hD = texture2D(u_heightMap, vec2(base - vec2(0.0, 1.0)) / (u_size)).a;
  float hU = texture2D(u_heightMap, vec2(base + vec2(0.0, 1.0)) / (u_size)).a;

  v_normal = normalize(vec3(hL - hR, hD - hU, 2.0));

in hiveWE ground.vert.ts use cliffHeightMap general normal

  float hL = texture2D(cliffHeightMap , vec2(base - vec2(1.0, 0.0)) / (u_size)).a;
  float hR = texture2D(cliffHeightMap , vec2(base + vec2(1.0, 0.0)) / (u_size)).a;
  float hD = texture2D(cliffHeightMap , vec2(base - vec2(0.0, 1.0)) / (u_size)).a;
  float hU = texture2D(cliffHeightMap , vec2(base + vec2(0.0, 1.0)) / (u_size)).a;

  v_normal = normalize(vec3(hL - hR, hD - hU, 2.0));

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