From bf967631c146997d7673798318d94b0a186ec89d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Fri, 6 Sep 2019 22:29:05 +0200
Subject: Add a fun little fake bonfire _simulation_

…using appropriately colored aging particles
---
 utility/particles.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'utility')

diff --git a/utility/particles.py b/utility/particles.py
index b838790..43f32a3 100644
--- a/utility/particles.py
+++ b/utility/particles.py
@@ -7,7 +7,7 @@ import OpenGL.GL as gl
 from OpenGL.arrays import vbo
 
 class Particles:
-    def __init__(self, context, float_type, grid):
+    def __init__(self, context, queue, float_type, grid):
         self.context = context
         self.count = len(grid)
 
@@ -16,6 +16,11 @@ class Particles:
         self.np_particles[:,0:2] = grid
         self.np_particles[:,2:4] = self.np_particles[:,0:2]
 
+        self.np_init_particles = numpy.ndarray(shape=(self.count, 2), dtype=float_type)
+        self.np_init_particles[:,0:2] = grid
+        self.cl_init_particles = cl.Buffer(context, mf.READ_ONLY, size=self.count * 2*numpy.float32(0).nbytes)
+        cl.enqueue_copy(queue, self.cl_init_particles, self.np_init_particles).wait();
+
         self.gl_particles = vbo.VBO(data=self.np_particles, usage=gl.GL_DYNAMIC_DRAW, target=gl.GL_ARRAY_BUFFER)
         self.gl_particles.bind()
         self.cl_gl_particles = cl.GLBuffer(self.context, mf.READ_WRITE, int(self.gl_particles))
-- 
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