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Initial steps in making the light rendering use light volumes instead of shadow volumes to allow rendering the lights in one batch.

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So far just disabled shadow rendering and cleaned up some unnecessary stuff
This commit is contained in:
Regalis
2017-02-25 21:24:38 +02:00
parent c9f09031de
commit 844097b132
3 changed files with 70 additions and 91 deletions
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Subsurface/Source/Map/Lights/LightManager.cs
+3 -34
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@@ -133,45 +133,19 @@ namespace Barotrauma.Lights
//clear to some small ambient light
graphics.Clear(AmbientLight);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Additive, null, null, null, null, cam.Transform);
foreach (LightSource light in lights)
{
if (light.Color.A < 1 || light.Range < 1.0f || !light.CastShadows) continue;
if (!MathUtils.CircleIntersectsRectangle(light.WorldPosition, light.Range, viewRect)) continue;
//clear alpha to 1
ClearAlphaToOne(graphics, spriteBatch);
//draw all shadows
//write only to the alpha channel, which sets alpha to 0
graphics.RasterizerState = RasterizerState.CullNone;
graphics.BlendState = CustomBlendStates.WriteToAlpha;
light.DrawShadows(graphics, cam, shadowTransform);
//draw the light shape
//where Alpha is 0, nothing will be written
spriteBatch.Begin(SpriteSortMode.Deferred, CustomBlendStates.MultiplyWithAlpha, null, null, null, null, cam.Transform);
light.Draw(spriteBatch);
spriteBatch.End();
}
ClearAlphaToOne(graphics, spriteBatch);
spriteBatch.Begin(SpriteSortMode.Deferred, CustomBlendStates.MultiplyWithAlpha, null, null, null, null, cam.Transform);
GameMain.ParticleManager.Draw(spriteBatch, false, Particles.ParticleBlendState.Additive);
foreach (LightSource light in lights)
{
if (light.Color.A < 1 || light.Range < 1.0f || light.CastShadows) continue;
//if (!MathUtils.CircleIntersectsRectangle(light.WorldPosition, light.Range, viewRect)) continue;
light.Draw(spriteBatch);
}
if (Character.Controlled != null)
{
if (Character.Controlled.ClosestItem != null)
@@ -185,10 +159,6 @@ namespace Barotrauma.Lights
Character.Controlled.ClosestCharacter.Draw(spriteBatch);
}
}
spriteBatch.End();
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.Additive, null, null, null, null, cam.Transform);
foreach (Hull hull in smoothedHullAmbientLights.Keys)
{
@@ -207,7 +177,6 @@ namespace Barotrauma.Lights
spriteBatch.End();
//clear alpha, to avoid messing stuff up later
ClearAlphaToOne(graphics, spriteBatch);
@@ -253,7 +222,7 @@ namespace Barotrauma.Lights
Matrix shadowTransform = cam.ShaderTransform
* Matrix.CreateOrthographic(GameMain.GraphicsWidth, GameMain.GraphicsHeight, -1, 1) * 0.5f;
var convexHulls = LightSource.GetHullsInRange(viewTarget.Position, cam.WorldView.Width*0.75f, viewTarget.Submarine);
var convexHulls = ConvexHull.GetHullsInRange(viewTarget.Position, cam.WorldView.Width*0.75f, viewTarget.Submarine);
if (convexHulls != null)
{