From 75905c01b13fd7a1d58494b8aaacb3b4b3cccdaa Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 28 Aug 2024 03:48:43 +0100
Subject: Use billboard shadows for foliage

---
 game/scenary/foliage.cpp | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/game/scenary/foliage.cpp b/game/scenary/foliage.cpp
index 1c03217..af67ea6 100644
--- a/game/scenary/foliage.cpp
+++ b/game/scenary/foliage.cpp
@@ -45,10 +45,12 @@ void
 Foliage::shadows(const ShadowMapper & mapper) const
 {
 	if (const auto count = instances.size()) {
-		mapper.dynamicPointInstWithTextures.use();
-		if (texture) {
-			texture->bind(GL_TEXTURE3);
-		}
-		bodyMesh->DrawInstanced(instanceVAO, static_cast<GLsizei>(count));
+		const auto dimensions = bodyMesh->getDimensions();
+		mapper.stencilShadowProgram.use(dimensions.centre, dimensions.size);
+		glActiveTexture(GL_TEXTURE0);
+		glBindTexture(GL_TEXTURE_2D, shadowStencil);
+		glBindVertexArray(instancePointVAO);
+		glDrawArrays(GL_POINTS, 0, static_cast<GLsizei>(count));
+		glBindVertexArray(0);
 	}
 }
-- 
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