j3d1/KlassischeKeplerKriege
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particles are even nicer now.

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This commit is contained in:
Andreas Ortmann 2016-09-30 22:04:14 +02:00
parent 3a30a20043
commit c950d6a54d
5 changed files with 13 additions and 15 deletions
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3
data/shader/particle.frag
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@ -15,7 +15,6 @@ vec3 hsv2rgb(vec3 c)
void main()
{
gl_FragColor = vec4(0.5+0.5*vertex.x, 0.5+0.5*vertex.y, 0.0, 1.0);
float r = length(vertex);
if (r > 1.0) {
discard;
@ -26,8 +25,6 @@ void main()
float v = max(0.0, (1.0-log(d)));
float s = max(0.0, min(30.0 * sqrt(decay) * explCenterDist, 1.0));
//v /= decay * 10.0*length(vertex-explCenter);
//v /= 1.0+2.0*length(vertex-explCenter);
//v /= 1.0 + max(0.0, min(35.0*(decay-0.2), 1.0)) + 10.0 * explCenterDist;
v /= 1.0 + 10.0 * explCenterDist;

8
data/shader/particle.vert
View file

@ -22,11 +22,11 @@ void main()
decay = age / halfAge;
// faster particles are smaller
//float s = size * (1.0-length(in_velocity)/maxVelocity);
float s = size;
float speedScale = (1.0 - 0.8*length(in_velocity)/maxVelocity);
float finalSize = size * speedScale;
vec2 base = in_vertex;
vec3 p = s*vec3(base, 0.0);
vec3 offset = (0.1*age + log(1.0+age*5.0)) * in_velocity + in_position;
vec3 p = finalSize*vec3(base, 0.0);
vec3 offset = (0.2*age + log(1.0+age*5.0)) * in_velocity + in_position;
p += offset;
gl_Position = vec4(p, 1.0);

3
game/main.cpp
View file

@ -77,7 +77,8 @@ int main(int argc, char *argv[])
asio::io_service io_service;
Server s(io_service, game.state(), atoi(port) );
GameWindow window(500, 500, &game);
//GameWindow window(500, 500, &game);
GameWindow window(750, 750, &game);
window.set_maxfps(60.0);
window.open();

4
game/renderer_polygon_3d/particle_batch.cpp
View file

@ -137,9 +137,9 @@ namespace endofthejedi {
glUniform1f(m_shader.location("age"), m_age);
glUniform1f(m_shader.location("maxVelocity"), m_maxVelocity);
glUniform1f(m_shader.location("halfAge"), m_halfAge);
glUniform1f(m_shader.location("halfAge"), m_halfAge);
glUniform1f(m_shader.location("size"), m_particleRadius);
glUniform3f(m_shader.location("center"), m_center.x, m_center.y, m_center.z);
glUniform3f(m_shader.location("explCenter"), m_center.x, m_center.y, m_center.z);
bind();

10
game/renderer_polygon_3d/renderer_polygon_3d.cpp
View file

@ -95,7 +95,7 @@ namespace endofthejedi {
{
//float particleRadius = 0.005;
//float particleRadius = 0.003;
float particleRadius = 0.01;
float particleRadius = 0.007;
// TODO: use this as shader input too and make the area 2x around this
// so that it stays hot/yellow for 2/3 of the time
@ -119,7 +119,7 @@ namespace endofthejedi {
//glm::vec3 v = 0.5f*glm::vec3(sin(t), cos(t), util::randf_m1_1());
glm::vec3 v = glm::ballRand(maxVelocity);
v *= util::randf_0_1() * util::randf_0_1();
v *= util::randf_0_1() * util::randf_0_1() * util::randf_0_1();
batch->setParticle(i, glm::vec3(pos, 0.0) + glm::ballRand(explSize), v);
}
@ -141,12 +141,12 @@ namespace endofthejedi {
}
if (!gotIt) {
addExplosionEffect(expl->id, expl->position, 500, 5.0);
addExplosionEffect(expl->id, expl->position, 1000, 2.0);
}
}
if (m_particles.size() == 0) {
addExplosionEffect(0, glm::vec2(0.0, 0.0), 1000, 5.0);
addExplosionEffect(0, glm::vec2(0.0, 0.0), 1000, 2.0);
}
std::vector<ParticleBatch*> rm;
@ -284,7 +284,7 @@ namespace endofthejedi {
fade_out = 1.0 - (trace->age / trace->maxAge);
}
glColor3f(0.0, 0.0, 1.0*fade_out);
glColor3f(0.0, 0.5*fade_out, 0.5*fade_out);
glBegin(GL_LINE_STRIP);
for (const game::Trace::TracePoint &tp : trace->points) {
glVertex2f(tp.position.x, tp.position.y);