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Add shadowcaster support to lighting and shaders

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Introduces shadowcaster support by adding shadow map index fields to light data, updating PlayerPositionsToShader and LightdataStorage to handle shadow map indices, and extending the shader and its includes to sample shadowcaster planes. Adds ShadowcasterUpdater script and editor preview for updating world-to-local matrices, and updates relevant arrays and property handling throughout the codebase. Also adds a sample plane mesh for shadowcasting.
This commit is contained in:
DeMuenu
2025-09-29 23:14:38 +02:00
parent bce6fbdc3d
commit 868e713336
15 changed files with 521 additions and 61 deletions
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53
EditorPreview/Editor/PlayerPositionsToShaderPreview.cs
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@@ -17,7 +17,8 @@ public static class PlayerPositionsToShaderPreview
public Vector4[] colors;
public Vector4[] directions;
public float[] types;
public int size;
public float[] shadowMapIndices;
public int size;
}
static PlayerPositionsToShaderPreview()
@@ -66,16 +67,17 @@ public static class PlayerPositionsToShaderPreview
static void EnsureArrays(PlayerPositionsToShader src, int required)
{
if (!_cache.TryGetValue(src, out var c) ||
c.positions == null || c.colors == null || c.directions == null || c.types == null ||
c.positions == null || c.colors == null || c.directions == null || c.types == null || c.shadowMapIndices == null ||
c.size != required)
{
c = new Cache
{
positions = new Vector4[required],
colors = new Vector4[required],
directions = new Vector4[required],
types = new float[required],
size = required
positions = new Vector4[required],
colors = new Vector4[required],
directions = new Vector4[required],
types = new float[required],
shadowMapIndices = new float[required],
size = required
};
_cache[src] = c;
}
@@ -87,25 +89,27 @@ public static class PlayerPositionsToShaderPreview
EnsureArrays(src, max);
var c = _cache[src];
var positions = c.positions;
var colors = c.colors;
var directions = c.directions;
var types = c.types;
var positions = c.positions;
var colors = c.colors;
var directions = c.directions;
var types = c.types;
var shadowMapIndices = c.shadowMapIndices;
// Clear arrays to safe defaults
for (int i = 0; i < max; i++)
{
positions[i] = Vector4.zero;
colors[i] = Vector4.zero;
directions[i] = Vector4.zero;
types[i] = 0f;
positions[i] = Vector4.zero;
colors[i] = Vector4.zero;
directions[i] = Vector4.zero;
types[i] = 0f;
shadowMapIndices[i] = 0f;
}
// Use the Editor-side function defined on the partial class
int count = 0;
try
{
src.Editor_BuildPreview(out positions, out colors, out directions, out types, out count);
src.Editor_BuildPreview(out positions, out colors, out directions, out types, out shadowMapIndices, out count);
// replace cache arrays if sizes changed
if (positions.Length != c.size)
@@ -113,11 +117,12 @@ public static class PlayerPositionsToShaderPreview
_cache[src] = new Cache
{
positions = positions,
colors = colors,
directions = directions,
types = types,
size = positions.Length
positions = positions,
colors = colors,
directions = directions,
types = types,
shadowMapIndices = shadowMapIndices,
size = positions.Length
};
}
catch
@@ -152,6 +157,12 @@ public static class PlayerPositionsToShaderPreview
Shader.SetGlobalFloatArray(id, types);
}
if (!string.IsNullOrEmpty(src.shadowMapIndexProperty))
{
int id = Shader.PropertyToID(src.shadowMapIndexProperty);
Shader.SetGlobalFloatArray(id, shadowMapIndices);
}
if (!string.IsNullOrEmpty(src.countProperty))
{
int id = Shader.PropertyToID(src.countProperty);